@article{05636854,
title = {A matrix inequality for M\"obius functions.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {10},
year = {2009},
zbl = {1190.15024},
language = {en},
url = {http://dml.mathdoc.fr/item/05636854}
}
Bordellès, Olivier; Cloitre, Benoit. A matrix inequality for Möbius functions.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 10 (2009) . http://gdmltest.u-ga.fr/item/05636854/