Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1979_15_10_a21, author = {V. B. Pilyugina}, title = {Behavior of trajectories on the center manifold of a system with one zero root}, journal = {Differencialʹnye uravneni\^a}, pages = {1907--1908}, publisher = {mathdoc}, volume = {15}, number = {10}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_10_a21/} }
V. B. Pilyugina. Behavior of trajectories on the center manifold of a system with one zero root. Differencialʹnye uravneniâ, Tome 15 (1979) no. 10, pp. 1907-1908. http://geodesic.mathdoc.fr/item/DE_1979_15_10_a21/