Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1993_29_5_a0, author = {V. V. Amel'kin and Ching Zan Dang}, title = {Strong isochronism of the center of dynamical systems with second-degree polynomials}, journal = {Differencialʹnye uravneni\^a}, pages = {739--743}, publisher = {mathdoc}, volume = {29}, number = {5}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1993_29_5_a0/} }
TY - JOUR AU - V. V. Amel'kin AU - Ching Zan Dang TI - Strong isochronism of the center of dynamical systems with second-degree polynomials JO - Differencialʹnye uravneniâ PY - 1993 SP - 739 EP - 743 VL - 29 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1993_29_5_a0/ LA - ru ID - DE_1993_29_5_a0 ER -
V. V. Amel'kin; Ching Zan Dang. Strong isochronism of the center of dynamical systems with second-degree polynomials. Differencialʹnye uravneniâ, Tome 29 (1993) no. 5, pp. 739-743. http://geodesic.mathdoc.fr/item/DE_1993_29_5_a0/