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@article{DE_1972_8_6_a21, author = {N. N. Ladis}, title = {Topological equivalence of certain differential systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1116--1119}, publisher = {mathdoc}, volume = {8}, number = {6}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_6_a21/} }
N. N. Ladis. Topological equivalence of certain differential systems. Differencialʹnye uravneniâ, Tome 8 (1972) no. 6, pp. 1116-1119. http://geodesic.mathdoc.fr/item/DE_1972_8_6_a21/