%0 Journal Article %A Roubíček, Tomáš %T Time-optimal control of nonlinear parabolic systems with constrained derivative of control, existence theorem %J Kybernetika %D 1984 %P 405-412 %V 20 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1984__20_5_a4/ %G en %F KYB_1984__20_5_a4