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@article{DE_1966_2_11_a6, author = {M. V. Dolov}, title = {Algebraic limit cycles of a differential equation}, journal = {Differencialʹnye uravneni\^a}, pages = {1469--1473}, publisher = {mathdoc}, volume = {2}, number = {11}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1966_2_11_a6/} }
M. V. Dolov. Algebraic limit cycles of a differential equation. Differencialʹnye uravneniâ, Tome 2 (1966) no. 11, pp. 1469-1473. http://geodesic.mathdoc.fr/item/DE_1966_2_11_a6/