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@article{DE_1979_15_3_a4, author = {S. Yu. Pilyugin}, title = {Simple connectedness with preservation of the phase diagram}, journal = {Differencialʹnye uravneni\^a}, pages = {408--416}, publisher = {mathdoc}, volume = {15}, number = {3}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_3_a4/} }
S. Yu. Pilyugin. Simple connectedness with preservation of the phase diagram. Differencialʹnye uravneniâ, Tome 15 (1979) no. 3, pp. 408-416. http://geodesic.mathdoc.fr/item/DE_1979_15_3_a4/