TY - GEN ED - Engels, Gregor ED - Lewerentz, Claus ED - Schäfer, Wilhelm ED - Schürr, Andy ED - Westfechtel, Bernhard ID - 7770 TI - Graph Transformations and Model-Driven Engineering - Essays Dedicated to Manfred Nagl on the Occasion of his 65th Birthday VL - 5765 ER -