1. Bardohl, R.: GenGEd – Visual Definition of Visual Languages based on Algebraic Graph Transformation. Verlag Dr. Kovac, 2000. PhD thesis, Technical University of Berlin, Dept. of Computer Science (1999)
2. Bardohl, R., Ehrig, H., Ermel, C.: Generic Description, Behaviour and Animation of Visual Modeling Languages. In: Proc. Integrated Design and Process Technology (IDPT 2000), Dallas (Texas), USA (June 2000)
3. Bardohl, R., Ermel, C.: Visual Specification and Parsing of a Statechart Variant using GenGEd. In: Proc. Symposium on Visual Languages and Formal Methods (VLFM 2001), Stresa, Italy, September 5–7 (2001)
4. Bardohl, R., Ermel, C., Ehrig, H.: Generic Description of Syntax, Behavior and Animation of Visual Models. TR 2001/19, TU Berlin (2001) ISSN 1436-9915
5. Bardohl, R., Ermel, C., Padberg, J.: Formal Relationship between Petri Nets and Graph Grammars as Basis for Animation Views in GenGED. In: Proc. IDPT 2002: Sixth World Conference on Integrated Design and Process Technology (2002) (to appear)