%0 Journal Article %A P. E. Sobolevskii %T Generalized solutions of first order differential equations in Banach space %J Doklady Akademii Nauk %D 1965 %P 486-489 %V 165 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_165_3_a5/ %G ru %F DAN_1965_165_3_a5