Geodesic
Investigation of the problem of the center and focus in one case
Differencialʹnye uravneniâ, Tome 20 (1984) no. 2, pp. 187-197 Cet article a éte moissonné depuis la source Math-Net.Ru

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     author = {A. F. Andreev and P. D. Khody-Zade},
     title = {Investigation of the problem of the center and focus in one case},
     journal = {Differencialʹnye uravneni\^a},
     pages = {187--197},
     year = {1984},
     volume = {20},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_2_a0/}
}
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A. F. Andreev; P. D. Khody-Zade. Investigation of the problem of the center and focus in one case. Differencialʹnye uravneniâ, Tome 20 (1984) no. 2, pp. 187-197. http://geodesic.mathdoc.fr/item/DE_1984_20_2_a0/