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@article{DE_1969_5_3_a6, author = {P. S. Belevets}, title = {A global qualitative picture of a certain dynamical system}, journal = {Differencialʹnye uravneni\^a}, pages = {473--478}, publisher = {mathdoc}, volume = {5}, number = {3}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1969_5_3_a6/} }
P. S. Belevets. A global qualitative picture of a certain dynamical system. Differencialʹnye uravneniâ, Tome 5 (1969) no. 3, pp. 473-478. http://geodesic.mathdoc.fr/item/DE_1969_5_3_a6/