@article{DBLP:journals/dm/Varga90,
author = {Lewis E. Varga},
title = {Geometric matrices and an inequality for (0, 1)-matrices},
journal = {Discrete Mathematics},
volume = {82},
number = {3},
year = {1990},
pages = {303-315},
ee = {http://dx.doi.org/10.1016/0012-365X(90)90207-X},
bibsource = {DBLP, http://dblp.uni-trier.de}
}