@article{PIM_1985_N_S_37_51_a15,
     author = {T. D. Narang},
     title = {Some {Remarks} on {M-convexity} and {Best} {Approximation}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {85 },
     publisher = {mathdoc},
     volume = {_N_S_37},
     number = {51},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1985_N_S_37_51_a15/}
}