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@article{DE_1971_7_2_a5, author = {G. I. Laptev}, title = {Exponential solutions of the {Cauchy} problem with a constant operator}, journal = {Differencialʹnye uravneni\^a}, pages = {232--243}, publisher = {mathdoc}, volume = {7}, number = {2}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1971_7_2_a5/} }
G. I. Laptev. Exponential solutions of the Cauchy problem with a constant operator. Differencialʹnye uravneniâ, Tome 7 (1971) no. 2, pp. 232-243. http://geodesic.mathdoc.fr/item/DE_1971_7_2_a5/