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@article{DE_1977_13_10_a21, author = {I. P. Martynov}, title = {A differential equation with a moving singular line}, journal = {Differencialʹnye uravneni\^a}, pages = {1879--1881}, publisher = {mathdoc}, volume = {13}, number = {10}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1977_13_10_a21/} }
I. P. Martynov. A differential equation with a moving singular line. Differencialʹnye uravneniâ, Tome 13 (1977) no. 10, pp. 1879-1881. http://geodesic.mathdoc.fr/item/DE_1977_13_10_a21/