1. Bibliography on the net unfolding method. Available on the Internet at http://wwwbrauer.in.tum.de/gruppen/theorie/pom/pom.shtml .
2. J. Esparza. Model checking using net unfoldings. Science of Computer Programming, 23:151–195, 1994.
3. Lect Notes Comput Sci;J. Esparza,1999
4. Lect Notes Comput Sci;J. Esparza,1996
5. Javier Esparza and Keijo Heljanko. A new unfolding approach to LTL model checking. Research Report A60, Helsinki University of Technology, Laboratory for Theoretical Computer Science, Espoo, Finland, April 2000. Available at http://www.tcs.hut.fi/pub/reports/A60.ps.gz .