@article{DBLP:journals/dm/BrightwellT02,
author = {Graham Brightwell and
William T. Trotter},
title = {A combinatorial approach to correlation inequalities},
journal = {Discrete Mathematics},
volume = {257},
number = {2-3},
year = {2002},
pages = {311-327},
ee = {http://dx.doi.org/10.1016/S0012-365X(02)00432-6},
bibsource = {DBLP, http://dblp.uni-trier.de}
}