@article{02145770,
title = {Positive correlation for increasing events with disjoint dependencies does not imply positive correlation for all increasing events.},
journal = {Electronic Communications in Probability [electronic only]},
volume = {8},
year = {2003},
pages = {99-101},
zbl = {1060.60007},
language = {en},
url = {http://dml.mathdoc.fr/item/02145770}
}
Weininger, Nicholas. Positive correlation for increasing events with disjoint dependencies does not imply positive correlation for all increasing events.. Electronic Communications in Probability [electronic only], Tome 8 (2003) pp. 99-101. http://gdmltest.u-ga.fr/item/02145770/