Doughnut

Glazed doughnuts being made

A doughnut or donut (pronounced /ˈdoʊnət, ˈdoʊnʌt/) is a type of fried dough food popular in many countries and prepared in various forms as a sweet (or occasionally savory) snack that can be homemade or purchased in bakeries, supermarkets, food stalls, and franchised specialty outlets. They are usually sweet, deep-fried from a flour dough, and shaped in rings or flattened spheres that sometimes contain fillings. Other types of dough such as potato can also be used as well as other batters, and various toppings and flavorings are used for different types.

The two most common types are the toroidal ring doughnut and the filled doughnut, a flattened sphere injected with jam (or jelly), cream, custard, or other sweet fillings. A small spherical piece of dough may be cooked as a doughnut hole. Baked doughnuts are a variation cooked in an oven instead of being deep fried. Doughnut varieties are also divided into cake and risen type doughnuts.

Various doughnut incarnations are popular around the globe. Shapes include rings, balls, and flattened spheres, as well as ear shapes, twists and other forms. Not all doughnuts are sweet: in Southern India for instance, savory doughnuts called vadai are served.

Contents

Overview

Pumpkin doughnuts being deep fried in a pan

Ring doughnuts are formed by joining the ends of a long, skinny piece of dough into a ring or by using a doughnut cutter, which simultaneously cuts the outside and inside shape, leaving a doughnut-shaped piece of dough and a doughnut hole from dough removed from the center. This smaller piece of dough can be cooked or re-added to the batch to make more doughnuts. A disk-shaped doughnut can also be stretched and pinched into a torus until the center breaks to form a hole. Alternatively, a doughnut depositor can be used to place a circle of liquid dough (batter) directly into the fryer. Doughnuts can be made from a yeast-based dough for raised doughnuts or a special type of cake batter. Yeast-raised doughnuts contain about 25% oil by weight, whereas cake doughnuts' oil content is around 20%, but they have extra fat included in the batter before frying. Cake doughnuts are fried for about 90 seconds at approximately 190 °C to 198 °C, turning once. Yeast-raised doughnuts absorb more oil because they take longer to fry, about 150 seconds, at 182 °C to 190 °C. Cake doughnuts typically weigh between 24 g and 28 g, whereas yeast-raised doughnuts average 38 g and are generally larger when finished.

After frying, ring doughnuts are often topped with a glaze (icing) or a powder such as cinnamon or sugar. Styles such as fritters and jam doughnuts may be glazed and/or injected with jam or custard.

As well as being fried, doughnuts can be completely baked in an oven.[1] These have a slightly different texture from the fried variety with a somewhat different taste due to the lack of absorbed oil—and so have a lower fat content. The fried version may sometimes be called "fried cakes".

There are many other specialized doughnut shapes such as old-fashioneds, bars or Long Johns (a rectangular shape), or with the dough twisted around itself before cooking. In the northeast USA, bars and twists are usually referred to as crullers. Doughnut holes are small spheres that are made from the dough taken from the center of ring doughnuts or made to look as if they are. These holes are also known by brand names, such as Dunkin Donuts' Munchkins and Tim Hortons' Timbits. There are also beignets, which are square donuts topped with powdered sugar.

History of doughnuts in USA

Possible origins

Oliebollen Dutch doughnuts

Doughnuts have a disputed history. One theory suggests that doughnuts were introduced into North America by Dutch settlers, who were responsible for popularizing other American desserts, including cookies, apple and cream pie, and cobbler. Indeed, in the 19th century, doughnuts were sometimes referred to as one kind of olykoek (a Dutch word literally meaning "oil cake"), a "sweetened cake fried in fat."[2]

Hansen Gregory, an American, claimed to have invented the ring-shaped doughnut in 1847 aboard a lime-trading ship when he was only sixteen years old. Gregory was dissatisfied with the greasiness of doughnuts twisted into various shapes and with the raw center of regular doughnuts. He claimed to have punched a hole in the center of dough with the ship's tin pepper box and later taught the technique to his mother.[3]

According to anthropologist Paul R. Mullins, the first cookbook mentioning doughnuts was an 1803 English volume which included doughnuts in an appendix of American recipes. By the mid-19th century the doughnut looked and tasted like today’s doughnut, and was viewed as a thoroughly American food.[4]

Etymology

The earliest known recorded usage of the term dates an 1808 short story[5] describing a spread of "fire-cakes and dough-nuts." Washington Irving's reference to "doughnuts" in 1809 in his History of New York is more commonly cited as the first written recording of the term. Irving described "balls of sweetened dough, fried in hog's fat, and called doughnuts, or olykoeks."[6] These "nuts" of fried dough might now be called doughnut holes. Doughnut is the more traditional spelling, and still dominates outside the US. At present, doughnut and the shortened form donut are both pervasive in American English. The first known printed use of donut was in Peck's Bad Boy and his Pa by George W. Peck, published in 1900, in which a character is quoted as saying, "Pa said he guessed he hadn't got much appetite, and he would just drink a cup of coffee and eat a donut."[7] The donut spelling also showed up in a Los Angeles Times article dated August 10, 1929 in which Bailey Millard jokingly complains about the decline of spelling, and that he "can't swallow the 'wel-dun donut' nor the ever so 'gud bred'. The interchangeability of the two spellings can be found in a series of "National Donut Week" articles in The New York Times that covered the 1939 World's Fair. In four articles beginning October 9, two mention the donut spelling. Dunkin' Donuts, which was founded in 1948 under the name Open Kettle (Quincy, Massachusetts), is the oldest surviving company to use the donut variation, but the defunct Mayflower Donut Corporation is the first company to use that spelling, prior to World War II.

Regional variations

Africa and Middle East

Iran

The persian zoolbia and bamiyeh are fritter that comes in various shapes and sizes and coated in a sugar water syrup. Donuts are also made in the home in Iran, referred to as donuts, even in the singular.

Israel

Israeli sufganiyot in a wide variety of toppings at a bakery in Tel Aviv, Israel

Jelly doughnuts, known as sufganiyah (סופגניה, pl. Sufganyot סופגניות) in Israel, have become a traditional Hanukkah food[8] in the recent era, as they are cooked in oil, associated with the holiday account of the miracle of the oil. Traditional sufganyot are filled with red jelly and topped with icing sugar. However, many other varieties exist, with some being filled with dulce de leche (particularly common after the South American aliyah early in the 21st century).

South Africa

In South Africa, a variation known as the koeksuster is popular. Another variation is the vetkoek, which is also dough deep fried in oil. It is served with mince, syrup, honey or jam.

Horn of Africa

In Sudan, Ethiopia, Somalia and Eritrea, the signature doughnuts are lagaymat, which are balls of fried dough drizzled with powdered sugar.

Tunisia

In Tunisia, a pastry similar to doughnuts are yo-yo's. They are very traditional and popular. They come in different versions both as balls and in shape of donuts.

They are deep-fried and covered in a honey syrup or a kind of frosting. Sesame seeds are also used for flavor and decoration along with orange juice and vanilla.

Asia and Oceania

Australia

Custard-filled doughnut served by Il Fornaio, St Kilda, Victoria, Australia

In Australia, the doughnut is a popular snack food. Hot jam doughnuts, known simply as a jam doughnut in Australia are particularly popular[9] and a unique aspect of Australian culture, especially in Melbourne, Victoria and the Queen Victoria Market, where they are a tradition.[10] Jam doughnuts are similar to a Berliner, but are served hot with red jam (raspberry or strawberry) injected into a bun that is deep fried and then frosted in either sugar or cinnamon. Jam doughnuts are sometimes also bought frozen. In South Australia, they are known as Berliner or Kitchener and often served in cafes. A variant is the custard-filled doughnut.

Mobile vans that serve doughnuts, traditional or jam, are often seen at spectator events, carnivals and fetes and by the roadside near high-traffic areas like airports and the carparks of large shopping centres. Traditional cinnamon doughnuts are readily available in Australia from specialised retailers and convenience stores. Doughnuts are a popular choice for schools and other not-for-profit groups to cook and sell as a fundraiser. Donut King is the largest doughnut company in Australia.

China and Taiwan

There are a few sweet doughtnut-style pastries that are more regional in nature. Cantonese cuisine features an oval shaped pastry called ngàuhleisōu (牛脷酥, lit. "Ox-tongue pastry" due to its tongue-like shape). In Taiwan, there is shuāngbāotāi (雙胞胎, lit. twins).

A spherical food called saa1 jung1 (沙翁) which is also similar to cream puff, but denser in texture (doughnut like texture) with sugar sprinkled on top is normally available in Cantonese restaurants in the dim sum style. An oilier Beijing variant of this called 高力豆沙, gaoli dousha, is filled with red bean paste, originally, it is made with egg white instead of dough.

Chinese restaurants in the US sometimes serve small fried pastries similar to doughnut holes. They are served with condensed milk as a sauce.

Chinese cuisine features long deep-fried doughnut sticks that are often quite oily, hence their name in Mandarin, yóutiáo (油條, lit. oil strips.); in Cantonese, this doughnut-style pastry is called yàuhjagwái (油炸鬼, ghosts fried in oil). These pastries are not sweet and are often served with congee, a traditional rice porridge.

India

In India, a savory, fried, ring-shaped snack called a vada is often referred to as a doughnut. The vada is made from dal, lentil or potato rather than wheat flour. In North India, it is in the form of bulging disc called dahi-bada, and are soaked in yoghurt, sprinkled with spices, and topped with a sweet and sour chutney. In South India vadas are eaten with sambar and a coconut chutney.

Sweet pastries similar to old-fashioned doughnuts called balushahi and jalebi are also popular. Balushahi, also called badushah, is made from flour, deep fried in clarified butter, and dipped in sugar syrup. Balushahi is ring shaped but the hole in the center does not go all the way through. Jalebi, which is typically pretzel shaped, is made by deep frying batter in oil and soaking it in sugar syrup. A variant of jalebi, called imarti, is shaped with a small ring in the center around which a geometric pattern is arranged.

Indonesia

The Indonesian donat kentang is a potato doughnut, a ring-shaped fritter made from flour and mashed potatoes, coated in powder sugar or icing sugar.[11]

Japan

In Japan, An-doughnut (あんドーナッツ, "bean paste doughnut") is widely available at bakeries. An-doughnut is similar to Germany's Berliner, except it contains red azuki bean paste. Mister Donut is one of the most popular doughnut chains in Japan. Native to Okinawa is a spheroid pastry similar to doughnuts called sata andagi.

Malaysia

Kuih keria is a hole doughnut made from boiled sweet potato that is mashed. The sweet potato mash is shaped into rings and fried. The hot doughnut is then rolled in granulated sugar. The result is a doughnut with a sugar crusted skin.

Pakistan

Local doughnuts are called 'kichori', which are filled with minced meat (beef or chicken) and deep fried. Another variety is the 'mitha' or 'sweet' samosa, which is filled with 'Halwa' (flour based sweet meat) and deep fried. Local variations on American-style doughnuts were made available in the early 1990s.

Philippines

Local varieties of doughnuts are sold by peddlers and street vendors throughout the Philippines. Local varieties are usually made of plain well-mead dough, deep-fried in refined coconut oil and sprinkled with refined (not powdered or confectioner's) sugar. Donuts are a popular mid-day snack.

South Korea

Many bakeries in South Korea offer doughnuts either filled with or made entirely from the Korean traditional rice dessert tteok. These come in a variety of different colors, though they are normally in green, pink, or white. They are often filled with a sweet red bean paste or sesame seeds.

These desserts, while the shape of doughnut holes, can in no way be considered donuts as they are not fried nor have they any similarities of origin. There are, however, newer inventions referred to as tapioca or glutenous doughnuts, which are fried. The ball-type doughnuts are usually filled with red bean and coated with sugar. Finger style glutinous doughnuts are not filled, but glazed like their American counterparts.

Europe

Austria

In Austria, doughnut equivalents are called Krapfen. They are especially popular during Carneval season (Fasching), and do not have the typical ring shape, but instead are solid and usually filled with apricot jam (traditional) or vanilla cream (Vanillekrapfen).

Belgium

In Belgium, the smoutebollen are similar to the Dutch kind of oliebollen, but they usually do not contain any fruit, except for apple chunks sometimes. They are typical carnival and fair snacks and are eaten with powdered sugar on them.

Croatia and Serbia

Doughnuts similar to the Berliner are prepared in the northern Balkans, particularly in Croatia and in Bosnia (pokladnice or krofne). They are called krofna, a name derived from the German Krapfen for this pastry. This type of doughnut is popular in Chile because of the large German community there and is called a Berlin (plural Berlines). It may be filled with jam or with manjar, the Chilean version of dulce de leche.

Czech Republic

There are Czech Republic "American" style doughnuts, but before they were solid shape and filled with jelly (strawberry or peach). The shape is similar to doughnuts in Germany or Poland. They are called Kobliha (Koblihy in plural). They may be filed with nougat or with vanilla custard. There are now many fillings; cut in half or non-filled knots with sugar and cinnamon on top.

Denmark

In Denmark, doughnuts exist in their "American" shape, and these can be obtained from various stores, e.g. McDonald's and most gas stations. The Berliner, however, is also available in bakeries.

Finland

in Finland, a sweet doughnut is called a munkki (the word also means monk) and are commonly eaten in cafés and cafeteria restaurants. They are sold cold and are sometimes filled with jam (U.S. jelly) or a vanilla sauce.

A savory form of doughnut is the meat doughnut (in Finnish lihapiirakka, or literally meat pie). Being made of doughnut mixture and deep fried the end product is more akin to a savory doughnut than any pie known in the English speaking world.

France

See Beignet.

Germany

German Berliner

In parts of Germany, the doughnut equivalents are called Berliner (sg. and pl.), but not in the capital city of Berlin itself and neighboring areas, where they are called Pfannkuchen (which is often found misleading by people in the rest of Germany, who use the word Pfannkuchen to describe a pancake, which is also the literal translation of it). In middle Germany, they are called Kreppel or Pfannkuchen. In southern Germany, they are also called Krapfen and are especially popular during Carnival season (Karneval/Fasching) in southern and middle Germany and on New Year's Eve in northern Germany. Berliner do not have the typical ring shape, but instead are solid and usually filled with jam. Bismarcks and Berlin doughnuts are also found in the U.S., Canada, Finland, Denmark and Switzerland. Today, American style doughnuts are also available in Germany, but are less popular than their native counterparts.

Greece

In Greece, there is a doughnut-like snack, called loukoumas (λουκουμάς), which is doughnut with sugar and comes in two types (one is shaped like the number 8; the other is torus), from which the first one is crispier, whereas the second one is larger and softer.

Hungary

Fánk is a sweet traditional Hungarian cake. The most commonly used ingredients are: flour, yeast, butter, egg yolk, a little bit of rum, a sniff of salt, milk and oil to deep fry with. After the pastry has risen for approximately 30 minutes the result is an extreme light doughnut-like pastry. Fánk is mostly served with powdered sugar and lekvar.

It is supposed that Fánk pastry is of the same origin as German Berliner, Dutch oliebol, and Polish pączki.

Iceland

In Iceland kleinuhringur (pl. kleinuhringir and kleinuhringar) are a type of old Icelandic cuisine which resembles doughnuts.

Italy

Italian doughnuts include ciambelle, krapfen, zippuli from Calabria, maritozzi and bomboloni from Tuscany.

Lithuania

In Lithuania, a kind of doughnut called spurgos is widely known. Sometimes spurgos are similar to Polish doughnuts, but some specific recipes, such as cottage cheese doughnuts (varškės spurgos), were invented.

Netherlands

In the Netherlands, oliebollen, referred to in cookbooks as "Dutch doughnuts", are a type of fritter, with or without raisins or currants, and usually sprinkled with powdered sugar. Variations of the recipe contain slices of apple or other fruits. They are traditionally eaten as part of New Year celebrations.[12][13]

Poland

Traditional Polish pączki

In Poland and parts of the U.S. with a large Polish community, like Chicago and Detroit, the round, jam-filled doughnuts eaten especially—though not exclusively—during the Carnival are called pączki (pronounced [ˈpɔntʂkʲi]). Russian "пончики", ponchiki, and Ukrainian "пампушки", pampushky, are the equivalent designations for pączki, but could be filled with cream or jam, or neither. Romanian gogoşi are similar to the Polish pączki. Pączki have been known in Poland at least since the Middle Ages. Jędrzej Kitowicz has described that during the reign of the August III under influence of French cooks who came to Poland at that time, pączki dough baked in Poland has been improved, so that pączki became lighter, spongier, and more resilient.

Portugal

See Malasada.

Romania

In Romania, donuts are a desert called "gogoşi". Usually they are fried in oil like a pancake, with no hole, and are stuffed with chocolate, jam, cheese and other combinations. They may be covered with powdered sugar.

Spain

Fried "Rosquillas" from Asturias, Spain.

In Spain, there are two different types of doughnuts. The first one, simply called "donuts", refer to the American-style donut, that is, a deep fried, sweet, soft, ring of flour dough.

The second type of donut is a traditional pastry called "rosquilla", made of fermented dough and which is usually fried or baked in an oven. They were purportedly introduced in Spain by the Romans. In Spain, there are several variants of them depending on the region where they are prepared and on the time of the year they are sold, as they are regarded in some parts as a pastry especially prepared only for Easter. Although overall they result in pastries of a tighter texture and less sugared than American doughnuts, they differ greatly in shape, size and taste from one region to another.

Switzerland

In Switzerland, there are Zigerkrapfen and Berliner.

United Kingdom and Ireland

In some parts of Scotland, ring doughnuts are referred to as doughrings, with the 'doughnut' moniker being reserved exclusively for the nut-shaped variety. Glazed, twisted rope-shaped doughnuts are known as yum-yums. It is also possible to buy fudge doughnuts in certain regions of Scotland. In some parts of Northern Ireland, ring doughnuts are referred to as "gravy rings" due to their being cooked in oil, itself colloquially known as "gravy". Also known as doughnoughts, referring to the 'zero' shape or 'nought', being supplied in bakeries and supermarkets. Fillings include jam, custard, and apple. Common ring toppings are sprinkle-iced and chocolate.

North America

Canada

In Canada, the doughnut designs are similar to those in the United States.

Mexico

The Mexican donas are similar to donuts, including the name; the dona is a fried-dough pastry-based snack, commonly covered with powdered brown sugar and cinnamon, white sugar or chocolate.

United States

Powdered, glazed and chocolate donuts from a variety pack sold at supermarkets

Frosted, glazed, powdered, Boston cream, coconut, sour cream, cinnamon, chocolate, and jelly are some of the varieties eaten in the United States. There are also potato doughnuts (sometimes referred to as spudnuts).

A popular doughnut in Hawaii is the malasada. Malasadas were brought to the Hawaiian Islands by early Portuguese settlers, and are a variation on Portugal's filhós. They are small eggy balls of yeast dough deep fried and coated in sugar.

Tiger Tail doughnut from an American supermarket

Immigrants have brought various doughnut varieties to the United States. To celebrate Fat Tuesday in southeastern Pennsylvania, churches sell a potato starch doughnut called a Fastnacht (or Fasnacht). The treats are so popular there that Fat Tuesday is often called Fastnacht Day. The Polish doughnut, the pączki, is popular in U.S. cities with large Polish communities such as Chicago, Milwaukee, and Detroit.

In regions of the country where apples are widely grown, especially the Northeast and Midwest states, cider doughnuts are a harvest season specialty, especially at orchards open to tourists, where they can be served fresh. Cider donuts are a cake donut with apple cider in the batter. The use of cider affects both the texture and flavor, resulting in a denser, moister product. They are often coated with either granulated or powdered sugar or cinnamon sugar.[14]

In Southern Louisiana, a popular variety of the doughnut is the beignet, a fried, square doughnut served traditionally with powdered sugar. Perhaps the most famous purveyor of beignets is New Orleans restaurant Cafe Du Monde.

Caribbean

A local donut known as "kurma", which are small, sweet, and fried cubed or rectangular-shaped.

Jamaica

In Jamaica, a local donut known as "Festival" is made of flour, cornmeal, sugar, and sometimes vanilla essence. They can range from slightly sweet to very sweet.

South America

Argentina

In Argentina, the local equivalent to doughnuts are facturas, a popular baked doughnut-like pastry of German origin. Facturas are consumed in large quantities, and can be found in every corner bakery. However, doughnuts are starting to gain popularity, probably because of American influence through television series and films. They can be found in some bakeries and hypermarkets like the American Wal-Mart or Chilean Jumbo.

Brazil

In Brazil, grocery stores and pastry shops sell ball-shaped doughnuts popularly known as "sonhos" (lit. dreams). The dessert was brought to Brazil by Portuguese colonizers that had contact with Dutch and German traders. They are the equivalent of nowadays "bolas de Berlim" (lit. Berlin's balls) in Portugal, but the traditional Portuguese yellow cream was substituted by local dairy and fruit products. They are made of a special type of bread filled with "goiabada" (guava jelly) or milk cream, and covered by white sugar.

Doughnut holes

Tim Hortons Timbits

Commercially made ring doughnuts are not made by cutting out the central portion of the cake but by dropping a ring of dough into hot oil from a specially shaped nozzle. However, soon after ring doughnuts became popular, doughnut sellers began to see the opportunity to market "holes" as if they were the portions cut out to make the ring.

The doughnut in popular culture

The doughnut has made an appearance in popular culture, particularly in the United States and Australia. References extend to objects or actions that are doughnut-shaped.

Australia

Donut King is Australia's largest retailer of donuts. A Guinness Book of Records largest donut made up of 90,000 individual donuts was set in Sydney in 2007 as part of a celebration for the release of The Simpsons Movie.[15]

Canada

Per capita, Canadians consume the most doughnuts, and Canada has the most doughnut stores per capita.[16][17]

United States

National Doughnut Day celebrates the doughnut's history and role in popular culture. There is a race in Staunton, Illinois featuring doughnuts called Tour de Donut.

In film, the doughnut has inspired Dora's Dunking Doughnuts, The Doughnuts (1963) and Tour de Donut: Gluttons for Punishment. In video games, the doughnut has appeared in games like The Simpsons Game and Donut Dilemma. In the cartoon Mucha Lucha, there are four things that make up the code of mask wrestling: honor, family, tradition, and doughnuts. There is also a children's book Arnie the Doughnut and music albums The Doughnut in Granny's Greenhouse and Desert Doughnuts.

See also

Notes

  1. Baked Doughnuts Recipe
  2. See entries for oliebol and olykoek in Cassidy, Frederic Gomes; Joan Houston Hall (1985). Dictionary of American Regional English: I-O. Harvard UP. p. 874. ISBN 9780674205192. http://books.google.com/books?id=eEB0YFR2EowC&pg=PA874. 
  3. "'Old Salt' Doughnut hole inventor tells just how discovery was made and stomachs of earth saved." Special to The Washington Post.; The Washington Post (1877–1954), Washington, D.C.; Mar 26, 1916; pg. ES9
  4. Glazed America: Anthropologist Examines Doughnut as Symbol of Consumer Culture Newswise, Retrieved on July 22, 2008.
  5. Originals, Selections, &C. for the Times. Sketches and Views-No. V; The Times, page [29], vol. I, iss. 8; January 30, 1808; Boston, Massachusetts.
  6. "etimonline.com Online Etymology Dictionary". http://www.etymonline.com/index.php?term=doughnut. 
  7. Peck's Bad Boy. http://books.google.com/books?id=sIwZAAAAYAAJ&pg=PA107. Retrieved 2009-05-18. 
  8. Jerusalem Post - Jerusalem Author: JESSICA STEINBERG Date: Dec 19, 2003 [1]
  9. http://www.donutking.com/dk/menu/showdetail.asp?id=7&t=Classic+Jam+Donut
  10. A hot piece of history from theage.com.au
  11. Sutomo, Budi. Sukses Wirausaha Jajan Favorit. Niaga Swadaya. p. 48. ISBN 9789791477055. http://books.google.com/books?id=owtU0VwEsGkC&pg=PA48. 
  12. Rose, Peter G. (1989). The sensible cook: Dutch foodways in the Old and the New World. Syracuse UP. pp. 121–122. ISBN 9780815602415. 
  13. Nederlands Centrum voor Volkscultuur, Federatie voor Volkskunde in Vlaanderen (2005). Traditie, Volume 11. Nederlands Centrum voor Volkscultuur. pp. 29–32. 
  14. Pyenson, Luke (2007-10-10). "A Match Made In October". The Boston Globe. http://www.boston.com/ae/food/articles/2007/10/10/a_match_made_in_october/. Retrieved 2009-09-26. 
  15. http://www.news.com.au/story/0,23599,22873599-2,00.html World's largest D'oh Nut
  16. The unofficial national sugary snack
  17. Beam, Alex (12-04-2008). "Canada's holey icon: Our eyes glaze over". Boston Globe. http://www.boston.com/lifestyle/food/articles/2008/04/12/canadas_holey_icon_our_eyes_glaze_over/. Retrieved 06-03-2009. 

References

External links