1. Symbolic Analysis Laboratory, SAL, home page (2001),
http://sal.csl.sri.com
2. Aanæs, M., Thai, H.P.: Modelling and Verification of Relay Interlocking Systems. Technical Report IMM-MSC-2012-14, DTU Informatics, Technical University of Denmark, Master thesis supervised by Anne Haxthausen, ah@imm.dtu.dk (2012)
3. Bjørner, D.: New Results and Current Trends in Formal Techniques for the Development of Software for Transportation Systems. In: Proceedings of the Symposium on Formal Methods for Railway Operation and Control Systems (FORMS 2003), Budapest, Hungary, May 15-16, L’Harmattan Hongrie (2003)
4. Bliguet, M.L., Kjær, A.A.: Modelling Interlocking Systems for Railway Stations. Technical Report IMM-M.Sc.-2008-68, DTU Informatics, Technical University of Denmark, Master thesis supervised by Anne Haxthausen, ah@imm.dtu.dk (2008)
5. Cao, Y., Xu, T., Tang, T., Wang, H., Zhao, L.: Automatic Generation and Verification of Interlocking Tables Based on Domain Specific Language for Computer Based Interlocking Systems (DSL-CBI). In: Proceedings of the IEEE International Conference on Computer Science and Automation Engineering (CSAE 2011), pp. 511–515. IEEE (2011)