Graph-grammars and their application to computer science : 2nd international workshop, Haus Ohrbeck, Germany, October 4-8, 1982 / under the auspices of the European Association for Theoretical Computer Science ; edited by Hartmut Ehrig, Manfred Nagl and Grzegorz Rozenberg. (Lecture notes in computer science)
Graph-grammars and their application to computer science : 2nd international workshop, Haus Ohrbeck, Germany, October 4-8, 1982 / under the auspices of the European Association for Theoretical Computer Science ; edited by Hartmut Ehrig, Manfred Nagl and Grzegorz Rozenberg.