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@article{IVM_2007_7_a9, author = {V. I. Ushakov}, title = {The {Sobolev} type equations with a nonsurjective operator at the time derivative}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {76--79}, publisher = {mathdoc}, number = {7}, year = {2007}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2007_7_a9/} }
V. I. Ushakov. The Sobolev type equations with a nonsurjective operator at the time derivative. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (2007), pp. 76-79. http://geodesic.mathdoc.fr/item/IVM_2007_7_a9/