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@article{DE_1973_9_4_a7, author = {S. Yu. Pilyugin}, title = {The phase diagrams of systems of differential equations that satisfy axiom~$A$}, journal = {Differencialʹnye uravneni\^a}, pages = {647--649}, publisher = {mathdoc}, volume = {9}, number = {4}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_4_a7/} }
S. Yu. Pilyugin. The phase diagrams of systems of differential equations that satisfy axiom~$A$. Differencialʹnye uravneniâ, Tome 9 (1973) no. 4, pp. 647-649. http://geodesic.mathdoc.fr/item/DE_1973_9_4_a7/