1. Imbert, J.L.: Fourier’s elimination: Which to choose? In: Principles and Practice of Constraint Programming, pp. 117–129 (1993)
2. Bagnara, R., Hill, P.M., Zaffanella, E.: The Parma Polyhedra Library, version 0.9, http://www.cs.unipr.it/ppl
3. Lecture Notes in Computer Science;H. Ganzinger,2004
4. Nieuwenhuis, R., Oliveras, A.: Fast Congruence Closure and Extensions. Inf. Comput. 2005(4), 557–580 (2007)
5. Lecture Notes in Computer Science;L. Moura de,2002