%0 Journal Article %A A. F. Filippov %T Conditions for the existence of a solution of a quasi-linear parabolic equation %J Doklady Akademii Nauk %D 1961 %P 568-570 %V 141 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_141_3_a13/ %G ru %F DAN_1961_141_3_a13