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In plant growth studies (Hunt 1982 is a standard text), there is another Richards Equation from Richards (1959) which is widely used (Heinen 1999).
Heinen M (1999). Analytical growth equations and their Genstat 5 equivalents. Netherlands Journal of Agricultural Science 47:67-89. URL <http://library.wur.nl/ojs/index.php/njas/article/view/479/195>.
Hunt R (1982). Plant Growth Curves (1st ed.). Edward Arnold.
Richards FJ (1959). A flexible growth function for empirical use. J Exp Bot 10:290-300.
130.60.24.62 07:59, 4 May 2007 (UTC)
