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@article{DE_1970_6_9_a4, author = {N. F. Otrokov}, title = {Certain properties of the integrating fractor}, journal = {Differencialʹnye uravneni\^a}, pages = {1574--1586}, publisher = {mathdoc}, volume = {6}, number = {9}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1970_6_9_a4/} }
N. F. Otrokov. Certain properties of the integrating fractor. Differencialʹnye uravneniâ, Tome 6 (1970) no. 9, pp. 1574-1586. http://geodesic.mathdoc.fr/item/DE_1970_6_9_a4/