Isochrony in cases of a center and a structurally unstable focus
Differencialʹnye uravneniâ, Tome 18 (1982) no. 6, pp. 1073-1075
Cet article a éte moissonné depuis la source Math-Net.Ru
@article{DE_1982_18_6_a18,
author = {V. V. Amel'kin},
title = {Isochrony in cases of a center and a structurally unstable focus},
journal = {Differencialʹnye uravneni\^a},
pages = {1073--1075},
year = {1982},
volume = {18},
number = {6},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DE_1982_18_6_a18/}
}
V. V. Amel'kin. Isochrony in cases of a center and a structurally unstable focus. Differencialʹnye uravneniâ, Tome 18 (1982) no. 6, pp. 1073-1075. http://geodesic.mathdoc.fr/item/DE_1982_18_6_a18/