@article{3068,
author = {Thaheem, A.B.},
title = {Existence of best approximations},
journal = {Portugaliae mathematica},
volume = {42},
year = {1983},
pages = {435-440},
zbl = {0585.41031},
mrnumber = {0836121},
language = {en},
url = {http://dml.mathdoc.fr/item/3068}
}
Thaheem, A.B. Existence of best approximations. Portugaliae mathematica, Tome 42 (1983) pp. 435-440. http://gdmltest.u-ga.fr/item/3068/