1. An action semantics for MML;Alvarez,2001
2. An ASM semantics for UML activity diagrams;Börger,2000
3. Modeling the dynamics of UML state machines;Börger,2000
4. The metamodelling language calculus: foundation semantics for UML;Clark,2001
5. A feasibility study in rearchitecting UML as a family of languages using a precise OO meta-modelling approach, version 1.0, September;Clark,2000