Does resource complementarity or prevention of lodging contribute to the increased productivity of rice varietal mixtures in Yunnan, China? - Revilla-Molina, I.M.; Bastiaans, L.; van Keulen, H.; Kropff, M.J.; Hui, F.; Castilla, N.P.; Mew, T.W.; Zhu, Y.Y.; Leung, H. (Elsevier, 2009)