@inbook{CeccheriniSilbersteinScarabotti+2004+413+420,
url = {https://doi.org/10.1515/9783110198089.2.413},
title = {Random walks, entropy and hopfianity of free
      groups},
booktitle = {Random Walks and Geometry},
booktitle = {Proceedings of a Workshop at the Erwin Schrödinger Institute, Vienna, June 18 - July 13, 2001},
author = {Tullio Ceccherini-Silberstein and Fabio Scarabotti},
editor = {Vadim A. Kaimanovich},
publisher = {De Gruyter},
address = {Berlin, New York},
pages = {413--420},
doi = {doi:10.1515/9783110198089.2.413},
isbn = {9783110198089},
year = {2004},
lastchecked = {2026-04-29}
}