@article{02145765,
title = {Inequality of two critical probabilities for percolation.},
journal = {Electronic Communications in Probability [electronic only]},
volume = {8},
year = {2003},
pages = {184-187},
zbl = {1060.60096},
language = {en},
url = {http://dml.mathdoc.fr/item/02145765}
}
Kahn, Jeff. Inequality of two critical probabilities for percolation.. Electronic Communications in Probability [electronic only], Tome 8 (2003) pp. 184-187. http://gdmltest.u-ga.fr/item/02145765/