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@article{PIM_1980_N_S_28_42_a5, author = {Dipak Chatterjee}, title = {M-convexity and {Best} {Approximation}}, journal = {Publications de l'Institut Math\'ematique}, pages = {43 }, publisher = {mathdoc}, volume = {_N_S_28}, number = {42}, year = {1980}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PIM_1980_N_S_28_42_a5/} }
Dipak Chatterjee. M-convexity and Best Approximation. Publications de l'Institut Mathématique, _N_S_28 (1980) no. 42, p. 43 . http://geodesic.mathdoc.fr/item/PIM_1980_N_S_28_42_a5/