@article{CMUC_1989__30_2_a13, author = {Tarafdar, Enayat}, title = {Five equivalent theorems on a convex subset of a topological vector space}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {323--326}, publisher = {mathdoc}, volume = {30}, number = {2}, year = {1989}, mrnumber = {1014132}, zbl = {0681.47029}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1989__30_2_a13/} }