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@article{IVM_1973_12_a5, author = {V. I. Liokumovich}, title = {Existence of $B$-spaces with a~nonconvex modulus of convexity}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {43--49}, publisher = {mathdoc}, number = {12}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1973_12_a5/} }
V. I. Liokumovich. Existence of $B$-spaces with a~nonconvex modulus of convexity. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1973), pp. 43-49. http://geodesic.mathdoc.fr/item/IVM_1973_12_a5/