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@article{MZM_1969_5_1_a8, author = {D. F. Kharazov}, title = {On symmetrizable operators of which some iteration satisfies a~positive definite condition}, journal = {Matemati\v{c}eskie zametki}, pages = {71--76}, publisher = {mathdoc}, volume = {5}, number = {1}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1969_5_1_a8/} }
D. F. Kharazov. On symmetrizable operators of which some iteration satisfies a~positive definite condition. Matematičeskie zametki, Tome 5 (1969) no. 1, pp. 71-76. http://geodesic.mathdoc.fr/item/MZM_1969_5_1_a8/