%0 Journal Article %A L. M. Berkovich %A N. Kh. Rozov %T Some remarks on differential equations of the form $y^{''}+a_0(x)y=\varphi(x)y^\alpha$ %J Differencialʹnye uravneniâ %D 1972 %P 2076-2079 %V 8 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_11_a19/ %G ru %F DE_1972_8_11_a19