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@article{DE_1972_8_10_a19, author = {N. N. Dedok}, title = {The singular points of the {Darboux} differential equation}, journal = {Differencialʹnye uravneni\^a}, pages = {1880--1881}, publisher = {mathdoc}, volume = {8}, number = {10}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_10_a19/} }
N. N. Dedok. The singular points of the Darboux differential equation. Differencialʹnye uravneniâ, Tome 8 (1972) no. 10, pp. 1880-1881. http://geodesic.mathdoc.fr/item/DE_1972_8_10_a19/