@article{VMUMM_1997_3_a8,
     author = {S. A. Shapovalov},
     title = {Conjugacy of symbolic dynamical systems with an at most countable phase space},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {35--39},
     year = {1997},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1997_3_a8/}
}