@article{DBLP:journals/tcs/KarhumakiKO06,
author = {Juhani Karhum{\"a}ki and
Michal Kunc and
Alexander Okhotin},
title = {Computing by commuting},
journal = {Theor. Comput. Sci.},
volume = {356},
number = {1-2},
year = {2006},
pages = {200-211},
ee = {http://dx.doi.org/10.1016/j.tcs.2006.01.051},
bibsource = {DBLP, http://dblp.uni-trier.de}
}