Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1992_28_12_a20, author = {M. G. Medvedeva}, title = {Investigation of the stability of systems that have invariant toroidal manifolds}, journal = {Differencialʹnye uravneni\^a}, pages = {2169--2172}, publisher = {mathdoc}, volume = {28}, number = {12}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1992_28_12_a20/} }
M. G. Medvedeva. Investigation of the stability of systems that have invariant toroidal manifolds. Differencialʹnye uravneniâ, Tome 28 (1992) no. 12, pp. 2169-2172. http://geodesic.mathdoc.fr/item/DE_1992_28_12_a20/