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@article{DE_1980_16_3_a23, author = {L. N. Lyapin}, title = {A property of an integral vortex}, journal = {Differencialʹnye uravneni\^a}, pages = {558--559}, publisher = {mathdoc}, volume = {16}, number = {3}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_3_a23/} }
L. N. Lyapin. A property of an integral vortex. Differencialʹnye uravneniâ, Tome 16 (1980) no. 3, pp. 558-559. http://geodesic.mathdoc.fr/item/DE_1980_16_3_a23/