%0 Journal Article %A M. A. Krasnosel'skii %A P. E. Sobolevskii %T The structure of the set of solutions of equations of parabolic type %J Doklady Akademii Nauk %D 1962 %P 26-29 %V 146 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_146_1_a6/ %G ru %F DAN_1962_146_1_a6