@article{02246268,
title = {Reverses of the triangle inequality in Banach spaces.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {6},
year = {2005},
zbl = {1093.46014},
language = {en},
url = {http://dml.mathdoc.fr/item/02246268}
}
Dragomir, Sever S. Reverses of the triangle inequality in Banach spaces.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 6 (2005) . http://gdmltest.u-ga.fr/item/02246268/