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@article{DE_1991_27_4_a1, author = {A. F. Andreev}, title = {Justification of {Frommer's} method for systems of class $C^\infty$}, journal = {Differencialʹnye uravneni\^a}, pages = {562--572}, publisher = {mathdoc}, volume = {27}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1991_27_4_a1/} }
A. F. Andreev. Justification of Frommer's method for systems of class $C^\infty$. Differencialʹnye uravneniâ, Tome 27 (1991) no. 4, pp. 562-572. http://geodesic.mathdoc.fr/item/DE_1991_27_4_a1/