@article{VMUMM_2013_4_a8,
     author = {A. A. Lykov},
     title = {Expected first passage time of a distant point for countable {Markov} chains},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {42--46},
     publisher = {mathdoc},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2013_4_a8/}
}