@article{02145778,
title = {Recurrent graphs where two independent random walks collide finitely often.},
journal = {Electronic Communications in Probability [electronic only]},
volume = {9},
year = {2004},
pages = {72-81},
zbl = {1060.60044},
language = {en},
url = {http://dml.mathdoc.fr/item/02145778}
}
Krishnapur, Manjunath; Peres, Yuval. Recurrent graphs where two independent random walks collide finitely often.. Electronic Communications in Probability [electronic only], Tome 9 (2004) pp. 72-81. http://gdmltest.u-ga.fr/item/02145778/