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@article{DE_1980_16_4_a3, author = {G. S. Osipenko}, title = {Perturbation of dynamical systems near invariant {manifolds.~II}}, journal = {Differencialʹnye uravneni\^a}, pages = {620--628}, publisher = {mathdoc}, volume = {16}, number = {4}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_4_a3/} }
G. S. Osipenko. Perturbation of dynamical systems near invariant manifolds.~II. Differencialʹnye uravneniâ, Tome 16 (1980) no. 4, pp. 620-628. http://geodesic.mathdoc.fr/item/DE_1980_16_4_a3/