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@article{DAN_1976_227_3_a14, author = {A. A. Ruban}, title = {The entropy of a transformation connected with {Perron's} algorithm for $p$-adic numbers}, journal = {Doklady Akademii Nauk}, pages = {571--573}, publisher = {mathdoc}, volume = {227}, number = {3}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_227_3_a14/} }
A. A. Ruban. The entropy of a transformation connected with Perron's algorithm for $p$-adic numbers. Doklady Akademii Nauk, Tome 227 (1976) no. 3, pp. 571-573. http://geodesic.mathdoc.fr/item/DAN_1976_227_3_a14/