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@article{DAN_1967_174_4_a0, author = {M. A. Gol'dman and S. N. Krachkovskii}, title = {Perturbation of homomorphisms by operators of finite rank}, journal = {Doklady Akademii Nauk}, pages = {743--746}, publisher = {mathdoc}, volume = {174}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_174_4_a0/} }
M. A. Gol'dman; S. N. Krachkovskii. Perturbation of homomorphisms by operators of finite rank. Doklady Akademii Nauk, Tome 174 (1967) no. 4, pp. 743-746. http://geodesic.mathdoc.fr/item/DAN_1967_174_4_a0/