@article{ZNSL_1985_142_a1,
     author = {S. S. Vallander},
     title = {Occupation times for countable {Markov} {chains~III.} {Chains} on a~tree with one branching point},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {25--38},
     publisher = {mathdoc},
     volume = {142},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1985_142_a1/}
}