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@article{IVM_1984_4_a2, author = {N. M. Efremov}, title = {A~condition for {a~Banach} space to be a~dual}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {11--13}, publisher = {mathdoc}, number = {4}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1984_4_a2/} }
N. M. Efremov. A~condition for a~Banach space to be a~dual. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1984), pp. 11-13. http://geodesic.mathdoc.fr/item/IVM_1984_4_a2/