Iranian Mathematical Society (IMS) Bulletin of the Iranian Mathematical Society 1017-060X 38 4 2012 12 15 An automaton group: a computational case study907 923 en Mohammad Jelodari Mamaghani Professor of mathematics Dept of maths and stats, Allameh tabatabaei univ. 2010 10 13 Automaton group weakly branch contracting group exponential growth