1. ABC+95._M. Ajmone Marsan, G. Balbo, G. Conte, S. Donatelli, and G. Franceschinis. Modelling with Generalized Stochastic Petri Nets. Series in Parallel Computing. John Wiley & Sons, 1995.
2. P. A. Abdulla and A. Nylén. Better is Better than Well: On Efficient Verification of Infinite-State Systems. In Proc. LICS 2000, pages 132–140, 2000.
3. P. A. Abdulla, K. Cerāns, B. Jonsson and Y.-K. Tsay. General Decidability Theorems for Infinite-State Systems. In Proc. LICS’ 96, pages 313–321, 1996.
4. Lect Notes Comput Sci;T. Ball,2001
5. Lect Notes Comput Sci;B.L.P.+.9.9._.G. Behrmann,1999