1. Lecture Notes in Computer Science;J. Barnat,2008
2. Lecture Notes in Computer Science;G. Behrmann,2003
3. Billington, J., Gallasch, G., Kristensen, L.M., Mailund, T.: Exploiting Equivalence Reduction and the Sweep-Line Method for Detecting Terminal States. IEEE Transactions on SMC - Part A 34(1), 23–38 (2004)
4. Lecture Notes in Computer Science;L. Brim,2004
5. Lecture Notes in Computer Science;S. Christensen,2001