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@article{DE_1990_26_10_a14, author = {A. V. Dedushev}, title = {A method for solving differential equations with operator coefficients}, journal = {Differencialʹnye uravneni\^a}, pages = {1766--1777}, publisher = {mathdoc}, volume = {26}, number = {10}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1990_26_10_a14/} }
A. V. Dedushev. A method for solving differential equations with operator coefficients. Differencialʹnye uravneniâ, Tome 26 (1990) no. 10, pp. 1766-1777. http://geodesic.mathdoc.fr/item/DE_1990_26_10_a14/