A. Knapp, and T. Mossakowski. Graph Transformation, Specifications, and Nets - In Memory of Hartmut Ehrig, volume 10800 of Lecture Notes in Computer Science, page 1-25. Springer Verlag, (2018)see also https://arxiv.org/abs/1610.03960.
T. Mossakowski, O. Kutz, and C. Lange. Recent Trends in Algebraic Development Techniques, 21th International Workshop, WADT 2012, volume 7841 of Lecture Notes in Computer Science, page 212-230. Springer, (2013)