@article{GDZPPN001168711,
title = {Proving Inverse-Positivity of Linear Operators by Reduction.},
journal = {Numerische Mathematik},
volume = {15},
year = {1970},
pages = {100-108},
zbl = {0187.09203},
url = {http://dml.mathdoc.fr/item/GDZPPN001168711}
}
SCHRÖDER, J. Proving Inverse-Positivity of Linear Operators by Reduction.. Numerische Mathematik, Tome 15 (1970) pp. 100-108. http://gdmltest.u-ga.fr/item/GDZPPN001168711/