@article{107238, author = {Tulsi Dass Narang}, title = {On $f$-best approximation in topological spaces}, journal = {Archivum Mathematicum}, volume = {021}, year = {1985}, pages = {229-233}, zbl = {0585.41029}, mrnumber = {833135}, language = {en}, url = {http://dml.mathdoc.fr/item/107238} }
Narang, Tulsi Dass. On $f$-best approximation in topological spaces. Archivum Mathematicum, Tome 021 (1985) pp. 229-233. http://gdmltest.u-ga.fr/item/107238/
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