1. Lecture Notes in Computer Science;A. Corradini,2006
2. Ehrig, H., Ehrig, K., Prange, U., Taentzer, G.: Fundamentals of Algebraic Graph Transformation. Springer (2006)
3. Ehrig, H., Pfender, M., Schneider, H.J.: Graph-grammars: An algebraic approach. In: FOCS, pp. 167–180. IEEE (1973)
4. Gamma, E., et al.: Design Patterns: Elements of Reusable Object-Oriented Software. Addison-Wesley (1994)
5. Lecture Notes in Computer Science;A.P. Lüdtke Ferreira,2004