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@article{DE_1969_5_6_a4, author = {Yu. V. Kuznetsov}, title = {On the analytic theory of infinite systems of linear differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {1018--1028}, publisher = {mathdoc}, volume = {5}, number = {6}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1969_5_6_a4/} }
Yu. V. Kuznetsov. On the analytic theory of infinite systems of linear differential equations. Differencialʹnye uravneniâ, Tome 5 (1969) no. 6, pp. 1018-1028. http://geodesic.mathdoc.fr/item/DE_1969_5_6_a4/