CASSANDRAS, Christos G. - LAFORTUNE, Stéphane. Introduction to discrete event systems. 2nd ed. New York : Springer, 2008. xxiii, 769 s. Available on Internet: <http://www.gbv.de/dms/ilmenau/toc/512945640.PDF> <http://deposit.ddb.de/cgi-bin/dokserv?id=2813682&prov=M&dok_var=1&dok_ext=htm> ISBN 978-0-387-33332-8.