1. Brandes, Th./Lewerentz, C.: GRAS: A Non-standard Data Base System within a Software Development Environment, Tech. Rep. OSM — 118, Univ. of Osnabrueck
2. Bunke, H.: Attributed Programmed Graph Grammars as a Tool for Image Interpretation, Purdue University, Techn. Report TR-EE-81-22
3. Donzeau-Gouge, M. et.al.: Programming Environments Based on Structured Editors — The MENTOR Experience, Techn. Report 26, INRIA, France
4. Engels, G./Gall, R./Nagl, M./Schäfer, W.: Software Specification using Graph Grammars, Computing 31, 317–346
5. Engels, G./ Schäfer, W.: The Design of an Adaptive and Portable Programming Support Environment, submitted for publication