1. http://kraken.cs.cas.cz/ft/public/public_index.phtml, Accessed May 2008
2. http://anna.fi.muni.cz/coin/CUmodels/, Accessed May 2008
3. Abdulla, P. A., K. Cerans, B. Jonsson and Y. Tsay, General decidability theorems for infinite-state systems, in: LICS'96 (1996), pp. 313–321
4. Abdulla, P. A. and A. Nylén, Better is better than well: On efficient verification of infinite-state systems, in: LICS'00, 2000, pp. 132–140
5. Parameterized verification with automatically computed inductive assertions;Arons,2001