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@article{DE_1986_22_2_a7, author = {S. K. Norkin}, title = {On the asymptotics and structure of the integral $O$-set of a singular system. {I}}, journal = {Differencialʹnye uravneni\^a}, pages = {228--236}, publisher = {mathdoc}, volume = {22}, number = {2}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1986_22_2_a7/} }
S. K. Norkin. On the asymptotics and structure of the integral $O$-set of a singular system. I. Differencialʹnye uravneniâ, Tome 22 (1986) no. 2, pp. 228-236. http://geodesic.mathdoc.fr/item/DE_1986_22_2_a7/