@article{DE_1972_8_11_a19, author = {L. M. Berkovich and N. Kh. Rozov}, title = {Some remarks on differential equations of the form $y^{''}+a_0(x)y=\varphi(x)y^\alpha$}, journal = {Differencialʹnye uravneni\^a}, pages = {2076--2079}, publisher = {mathdoc}, volume = {8}, number = {11}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_11_a19/} }