Michael Affenzeller Franz Pichler Rudolf Mittelmann On CAST.FSM Computation of Hierarchical Multi-layer Networks of Automata. 36-44 http://link.springer.de/link/service/series/0558/bibs/2178/21780036.htm 2001 conf/eurocast/2001 EUROCAST db/conf/eurocast/eurocast2001.html#AffenzellerPM01