@article{03762610,
title = {<title-group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><article-title xml:lang="en"><math><mi>M</mi></math>-convexity and best approximation.</article-title></title-group>},
journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie},
volume = {28(42)},
year = {1980},
pages = {43-50},
zbl = {0485.41024},
language = {en},
url = {http://dml.mathdoc.fr/item/03762610}
}
Chatterjee, Dipak. -convexity and best approximation.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 28(42) (1980) pp. 43-50. http://gdmltest.u-ga.fr/item/03762610/