@article{00022400,
title = {A note on best approximation and invertibility of operators on uniformly convex Banach spaces.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {14},
year = {1991},
pages = {611-614},
doi = {10.1155/S0161171291000832},
zbl = {0744.47001},
language = {en},
url = {http://dml.mathdoc.fr/item/00022400}
}
Holub, James R. A note on best approximation and invertibility of operators on uniformly convex Banach spaces.. International Journal of Mathematics and Mathematical Sciences, Tome 14 (1991) pp. 611-614. doi : 10.1155/S0161171291000832. http://gdmltest.u-ga.fr/item/00022400/