Andrzej Ehrenfeucht, Tero Harju, Grzegorz Rozenberg. Group Based Graph Transformations and Hierarchical Representations of Graphs. In Janice E. Cuny, Hartmut Ehrig, Gregor Engels, Grzegorz Rozenberg, editors, Graph Gramars and Their Application to Computer Science, 5th International Workshop, Williamsburg, VA, USA, November 13-18, 1994, Selected Papers. Volume 1073 of Lecture Notes in Computer Science, pages 502-520, Springer, 1994.
Abstract is missing.