Geodesic
Periodic solutions of some systems of nonlinear differential equations
Differencialʹnye uravneniâ, Tome 27 (1991) no. 4, pp. 705-707.

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

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     author = {I. G. Kozubovskaya},
     title = {Periodic solutions of some systems of nonlinear differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {705--707},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_4_a20/}
}
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I. G. Kozubovskaya. Periodic solutions of some systems of nonlinear differential equations. Differencialʹnye uravneniâ, Tome 27 (1991) no. 4, pp. 705-707. http://geodesic.mathdoc.fr/item/DE_1991_27_4_a20/