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@article{DAN_1989_307_4_a7, author = {E. A. Larionov}, title = {Asymptotics of eigenvalues under weak perturbation of normal}, journal = {Doklady Akademii Nauk}, pages = {802--806}, publisher = {mathdoc}, volume = {307}, number = {4}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1989_307_4_a7/} }
E. A. Larionov. Asymptotics of eigenvalues under weak perturbation of normal. Doklady Akademii Nauk, Tome 307 (1989) no. 4, pp. 802-806. http://geodesic.mathdoc.fr/item/DAN_1989_307_4_a7/