1. The Object Management Group. OMG Unified Modelling Language Specification, Version 1.3. OMG, 1999.
2. State-based model checking of event-driven system requirements
3. Software Seri;Holzmann,1991
4. Model checking and other ways of automating formal methods. Position Paper for Panel on Model Checking for Concurrent Programs, Software Quality Week, San Francisco, May/June 1995.
5. The Object Management Group. Object Constraint Language Specification. OMG, document ad/99-06-08, ch. 7, June, 1999.