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@article{DAN_1962_145_3_a7, author = {K. V. Zadiraka}, title = {Study of a singularly perturbed autonomous system in a circular torus}, journal = {Doklady Akademii Nauk}, pages = {507--509}, publisher = {mathdoc}, volume = {145}, number = {3}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_145_3_a7/} }
K. V. Zadiraka. Study of a singularly perturbed autonomous system in a circular torus. Doklady Akademii Nauk, Tome 145 (1962) no. 3, pp. 507-509. http://geodesic.mathdoc.fr/item/DAN_1962_145_3_a7/