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@article{FAA_1992_26_4_a11, author = {M. M. Faddeev}, title = {Necessary conditions for similarity of an operator to a self-adjoint one}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {80--83}, publisher = {mathdoc}, volume = {26}, number = {4}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1992_26_4_a11/} }
M. M. Faddeev. Necessary conditions for similarity of an operator to a self-adjoint one. Funkcionalʹnyj analiz i ego priloženiâ, Tome 26 (1992) no. 4, pp. 80-83. http://geodesic.mathdoc.fr/item/FAA_1992_26_4_a11/