Paine, C E T; Marthews, T R; Vogt, D R; Purves, D; Rees, M; Hector, A; Turnbull, L A (2012). How to fit nonlinear plant growth models and calculate growth rates: an update for ecologists. Methods in Ecology and Evolution, 3(2):245-256.
Hautier, Y; Hector, A; Vojtech, E; Purves, D; Turnbull, L A (2010). Modelling the growth of parasitic plants. Journal of Ecology, 98(4):857-866.