@article{01615220,
title = {On recurrent and transient sets of inhomogeneous symmetric random walks.},
journal = {Electronic Communications in Probability [electronic only]},
volume = {6},
year = {2001},
pages = {39-53},
zbl = {0976.60073},
language = {en},
url = {http://dml.mathdoc.fr/item/01615220}
}
Giacomin, Giambattista; Posta, Gustavo. On recurrent and transient sets of inhomogeneous symmetric random walks.. Electronic Communications in Probability [electronic only], Tome 6 (2001) pp. 39-53. http://gdmltest.u-ga.fr/item/01615220/