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@article{ARM_1985__21_2_a6, author = {Narang, T. D.}, title = {Characterizations of elements of best approximation in {non-Archimedean} normed spaces}, journal = {Archivum mathematicum}, pages = {123--126}, publisher = {mathdoc}, volume = {21}, number = {2}, year = {1985}, mrnumber = {817554}, zbl = {0623.41035}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1985__21_2_a6/} }
Narang, T. D. Characterizations of elements of best approximation in non-Archimedean normed spaces. Archivum mathematicum, Tome 21 (1985) no. 2, pp. 123-126. http://geodesic.mathdoc.fr/item/ARM_1985__21_2_a6/