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@article{DE_1979_15_11_a5, author = {G. S. Osipenko}, title = {Perturbation of dynamical systems near invariant {manifolds.~I}}, journal = {Differencialʹnye uravneni\^a}, pages = {1967--1979}, publisher = {mathdoc}, volume = {15}, number = {11}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_11_a5/} }
G. S. Osipenko. Perturbation of dynamical systems near invariant manifolds.~I. Differencialʹnye uravneniâ, Tome 15 (1979) no. 11, pp. 1967-1979. http://geodesic.mathdoc.fr/item/DE_1979_15_11_a5/