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@article{DE_1984_20_5_a4, author = {I. B. Sorogovets}, title = {Solutions of systems of linear differential equations with an irregular singular point}, journal = {Differencialʹnye uravneni\^a}, pages = {786--792}, publisher = {mathdoc}, volume = {20}, number = {5}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1984_20_5_a4/} }
I. B. Sorogovets. Solutions of systems of linear differential equations with an irregular singular point. Differencialʹnye uravneniâ, Tome 20 (1984) no. 5, pp. 786-792. http://geodesic.mathdoc.fr/item/DE_1984_20_5_a4/