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@article{DAN_1961_139_4_a9, author = {V. I. Matsaev}, title = {Volterra operators obtained from self-adjoint operators by perturbation}, journal = {Doklady Akademii Nauk}, pages = {810--813}, publisher = {mathdoc}, volume = {139}, number = {4}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a9/} }
V. I. Matsaev. Volterra operators obtained from self-adjoint operators by perturbation. Doklady Akademii Nauk, Tome 139 (1961) no. 4, pp. 810-813. http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a9/