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@article{DAN_1964_154_5_a6, author = {V. \`E. Lyantse}, title = {A non-selfadjoint differential operator of second order on a semi-axis}, journal = {Doklady Akademii Nauk}, pages = {1030--1033}, publisher = {mathdoc}, volume = {154}, number = {5}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_154_5_a6/} }
V. È. Lyantse. A non-selfadjoint differential operator of second order on a semi-axis. Doklady Akademii Nauk, Tome 154 (1964) no. 5, pp. 1030-1033. http://geodesic.mathdoc.fr/item/DAN_1964_154_5_a6/