1. Aho, A.V., Ullman, J.D.: The Theory of Parsing, Translation, and Compiling. In: Parsing, vol. I. Prentice-Hall, Englewood Cliffs (1972)
2. Software Engineering Notes;L. Alfaro de,2001
3. Drewes, F., Hoffmann, B., Plump, D.: Hierarchical graph transformation. Journal of Computer and System Sciences 64, 249–283 (2002)
4. Ehrig, H., Engels, G., Kreowski, H.-J., Rozenberg, G. (eds.): Handbook of Graph Grammars and Computing by Graph Transformation: Applications, Languages and Tools, vol. 2. World Scientific, Singapore (1999)
5. Ehrig, H., Kreowski, H.-J., Montanari, U., Rozenberg, G. (eds.): Handbook of Graph Grammars and Computing by Graph Transformation: Concurrency, Parallelism, and Distribution, vol. 3. World Scientific, Singapore (1999)