Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1964_154_1_a9, author = {Yu. I. Lyubich}, title = {Solvability conditions for the abstract {Cauchy} problem}, journal = {Doklady Akademii Nauk}, pages = {41--44}, publisher = {mathdoc}, volume = {154}, number = {1}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_154_1_a9/} }
Yu. I. Lyubich. Solvability conditions for the abstract Cauchy problem. Doklady Akademii Nauk, Tome 154 (1964) no. 1, pp. 41-44. http://geodesic.mathdoc.fr/item/DAN_1964_154_1_a9/