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@article{DE_1965_1_12_a5, author = {B. F. Bylov}, title = {A generalization of a theorem of {Perron}}, journal = {Differencialʹnye uravneni\^a}, pages = {1597--1600}, publisher = {mathdoc}, volume = {1}, number = {12}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1965_1_12_a5/} }
B. F. Bylov. A generalization of a theorem of Perron. Differencialʹnye uravneniâ, Tome 1 (1965) no. 12, pp. 1597-1600. http://geodesic.mathdoc.fr/item/DE_1965_1_12_a5/