1. AGG Homepage. http://tfs.cs.tu-berlin.de/agg
2. Bardohl R (1999) GenGEd – Visual Definition of Visual Languages based on Algebraic Graph Transformation. Verlag Dr. Kovac, 2000. PhD thesis, Technische Universität Berlin
3. Bardohl R (2002) A Visual Environment for Visual Languages. Science of Computer Programming (SCP) 44(2):181–203
4. Bardohl R, Ehrig K, Ermel C, Qemali A, Weinhold I (2002) GenGEd – Specifying Visual Environments based on Visual Languages. In: Kreowski H-J (ed) Proc. of APPLIGRAPH Workshop on Applied Graph Transformation (AGT 2002), pp 71–82
5. Bardohl R, Ermel C (2001) Visual Specification and Parsing of a Statechart Variant using GenGEd. In: Statechart Modeling Contest at IEEE Symposium on Visual Languages and Formal Methods (VLFM’01). Stresa, Italy, September 5–7, 2001