%0 Journal Article %A Tran Duc Van %T Solvability of boundary value problems for infinite-order nonlinear degenerate differential equations %J Differencialʹnye uravneniâ %D 1980 %P 1850-1863 %V 16 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1980_16_10_a13/ %G ru %F DE_1980_16_10_a13