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@article{IVM_1970_1_a9, author = {S. G. Mamikonyan}, title = {The approximation of semigroups that satisfy a~commutator condition}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {70--72}, publisher = {mathdoc}, number = {1}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1970_1_a9/} }
S. G. Mamikonyan. The approximation of semigroups that satisfy a~commutator condition. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1970), pp. 70-72. http://geodesic.mathdoc.fr/item/IVM_1970_1_a9/