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@article{DE_1971_7_2_a6, author = {O. F. Mikulina}, title = {The eigenfunction expansion of a second order differential equation with one turning point}, journal = {Differencialʹnye uravneni\^a}, pages = {244--260}, publisher = {mathdoc}, volume = {7}, number = {2}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1971_7_2_a6/} }
O. F. Mikulina. The eigenfunction expansion of a second order differential equation with one turning point. Differencialʹnye uravneniâ, Tome 7 (1971) no. 2, pp. 244-260. http://geodesic.mathdoc.fr/item/DE_1971_7_2_a6/