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@article{DE_1977_13_8_a19, author = {V. I. Bulgakov}, title = {The existence of a knotted solution for a third order autonomous system}, journal = {Differencialʹnye uravneni\^a}, pages = {1507--1508}, publisher = {mathdoc}, volume = {13}, number = {8}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1977_13_8_a19/} }
V. I. Bulgakov. The existence of a knotted solution for a third order autonomous system. Differencialʹnye uravneniâ, Tome 13 (1977) no. 8, pp. 1507-1508. http://geodesic.mathdoc.fr/item/DE_1977_13_8_a19/