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@article{DE_1971_7_10_a2, author = {\`E. I. Grudo}, title = {The structure of solutions of a certain system of two differential equations. {I}}, journal = {Differencialʹnye uravneni\^a}, pages = {1765--1778}, publisher = {mathdoc}, volume = {7}, number = {10}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1971_7_10_a2/} }
È. I. Grudo. The structure of solutions of a certain system of two differential equations. I. Differencialʹnye uravneniâ, Tome 7 (1971) no. 10, pp. 1765-1778. http://geodesic.mathdoc.fr/item/DE_1971_7_10_a2/