1. ITU: Recommendation Z.120: Message Sequence Chart (MSC) (1999)
2. Küster-Filipe, J.: Modelling concurrent interactions. Theoretical Computer Science 351(2) (2006); Algebraic Methodology and Software Technology Special Issue
3. Algebraic Methodology and Software Technology Special Issue
4. Reniers, M.: Message Sequence Charts:Syntax and Semantics. PhD thesis, Eindhoven University of Technology (1998)
5. OMG: UML 2.0 Superstructure Specification. document ptc/04-10-02 (2004), available from www.uml.org