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@article{IVM_1974_7_a2, author = {A. A. Gryzlov}, title = {$H$-closed extensions}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {21--26}, publisher = {mathdoc}, number = {7}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1974_7_a2/} }
A. A. Gryzlov. $H$-closed extensions. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1974), pp. 21-26. http://geodesic.mathdoc.fr/item/IVM_1974_7_a2/