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@article{DE_1993_29_9_a1, author = {M. V. Dolov and R. V. Kuz'min}, title = {On the limit cycles of a class of systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1481--1485}, publisher = {mathdoc}, volume = {29}, number = {9}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1993_29_9_a1/} }
M. V. Dolov; R. V. Kuz'min. On the limit cycles of a class of systems. Differencialʹnye uravneniâ, Tome 29 (1993) no. 9, pp. 1481-1485. http://geodesic.mathdoc.fr/item/DE_1993_29_9_a1/