@article{GDZPPN001164899,
title = {Best Approximation with Respect to Nearby Norms.},
journal = {Numerische Mathematik},
volume = {6},
year = {1964},
pages = {103-105},
zbl = {0128.34302},
url = {http://dml.mathdoc.fr/item/GDZPPN001164899}
}
KRIPKE, B.R. Best Approximation with Respect to Nearby Norms.. Numerische Mathematik, Tome 6 (1964) pp. 103-105. http://gdmltest.u-ga.fr/item/GDZPPN001164899/