%0 Journal Article %A B. A. Shcherbakov %T Recurrent solutions of differential equations %J Doklady Akademii Nauk %D 1966 %P 1004-1007 %V 167 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_167_5_a10/ %G ru %F DAN_1966_167_5_a10