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@article{DAN_1957_115_2_a10, author = {P. E. Sobolevskii}, title = {Approximate methods of solving differential equations in {Banach} space}, journal = {Doklady Akademii Nauk}, pages = {240--243}, publisher = {mathdoc}, volume = {115}, number = {2}, year = {1957}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_2_a10/} }
P. E. Sobolevskii. Approximate methods of solving differential equations in Banach space. Doklady Akademii Nauk, Tome 115 (1957) no. 2, pp. 240-243. http://geodesic.mathdoc.fr/item/DAN_1957_115_2_a10/