%0 Journal Article %A Canh, Nguyen %A Tuzar, AntonĂ­n %T An approximative method for solving the non-linear optimal control problem %J Kybernetika %D 1975 %P -247 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1975__11_3_a4/ %G en %F KYB_1975__11_3_a4