%0 Journal Article %A M. A. Krasnosel'skii %A A. V. Pokrovskii %T Equations with discontinuous nonlinearities %J Doklady Akademii Nauk %D 1979 %P 1056-1059 %V 248 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_248_5_a6/ %G ru %F DAN_1979_248_5_a6