1. P. Camurati and P. Prinetto. Formal verification of hardware correctness: Introduction and survey of current research. Computer, 21 (7):8?19 (July 1988).
2. E.M. Clarke and O. Grumberg. Research on automatic verification of finite-state concurrent systems. Annual Review of Computer Science, Carnegie Mellon University, Pittsburgh, PA, 2:269?290 (1987).
3. Lecture Notes in Computer Science;A. Pnueli,1986
4. M. Yoeli. Formal Verification of Hardware Design. IEEE Computer Society Press, Los Alamitos, CA, 1990.
5. J. Barwise (ed.). Handbook of Mathematical Logic. North-Holland, Amsterdam, 1977.