Integrating factors and limit cycles
Differencialʹnye uravneniâ, Tome 26 (1990) no. 3, pp. 542-544.

Voir la notice de l'article provenant de la source Math-Net.Ru

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     author = {Yu. V. Malyshev and V. P. Zakharov},
     title = {Integrating factors and limit cycles},
     journal = {Differencialʹnye uravneni\^a},
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     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_3_a28/}
}
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Yu. V. Malyshev; V. P. Zakharov. Integrating factors and limit cycles. Differencialʹnye uravneniâ, Tome 26 (1990) no. 3, pp. 542-544. http://geodesic.mathdoc.fr/item/DE_1990_26_3_a28/