@article{01054254, title = {A class of generalized best approximation problems in locally convex linear topological spaces.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {20}, year = {1997}, pages = {487-496}, doi = {10.1155/S0161171297000665}, zbl = {0889.41028}, language = {en}, url = {http://dml.mathdoc.fr/item/01054254} }
Samanta, Hora Krishna. A class of generalized best approximation problems in locally convex linear topological spaces.. International Journal of Mathematics and Mathematical Sciences, Tome 20 (1997) pp. 487-496. doi : 10.1155/S0161171297000665. http://gdmltest.u-ga.fr/item/01054254/