Orbit Complexity and Entropy for Group Endomorphisms: (Extended Abstract).

Robert J. Kenny Orbit Complexity and Entropy for Group Endomorphisms: (Extended Abstract). 97-110 2005 120 Electr. Notes Theor. Comput. Sci. http://dx.doi.org/10.1016/j.entcs.2004.06.037 db/journals/entcs/entcs120.html#Kenny05