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@article{DE_1976_12_7_a2, author = {Ya. V. Bykov and N. I. Fomina}, title = {The singular solutions of nonlinear differential {equations.~II}}, journal = {Differencialʹnye uravneni\^a}, pages = {1161--1173}, publisher = {mathdoc}, volume = {12}, number = {7}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_7_a2/} }
Ya. V. Bykov; N. I. Fomina. The singular solutions of nonlinear differential equations.~II. Differencialʹnye uravneniâ, Tome 12 (1976) no. 7, pp. 1161-1173. http://geodesic.mathdoc.fr/item/DE_1976_12_7_a2/