Graph TransformationsHartmut Ehrig, Reiko Heckel, Grzegorz Rozenberg, Gabriele TaentzerHäftad, 2008559 kr
Mathematisch-strukturelle Grundlagen der InformatikPhilip Zeitz, Martin Groe-Rhode, Felix Cornelius, Bernd Mahr, Hartmut Ehrig E-bok2013538 kr
Petri Net Technology for Communication-Based SystemsHerbert Weber, Grzegorz Rozenberg, Wolfgang Reisig, Hartmut Ehrig E-bok2003712 kr
Recent Trends in Data Type SpecificationHartmut Ehrig, Klaus P. Jantke, Fernando Orejas, Horst ReichelHäftad, 1991559 kr
Graph TransformationsGrzegorz Rozenberg, Francesco Parisi-Presicce, Gregor Engels, Hartmut Ehrig E-bok2004710 kr
Integration of Software Specification Techniques for Applications in EngineeringEngelbert Westkamper, Eckehard Schnieder, Wolfgang Reif, Martin Groe-Rhode, Jorg Desel, Werner Damm, Hartmut Ehrig E-bok2011732 kr
Mathematisch-strukturelle Grundlagen der InformatikHartmut Ehrig, Bernd Mahr, F. Cornelius, Martin Große-Rhode, P. ZeitzHäftad, 2001407 kr
TAPSOFT '87: Proceedings of the International Joint Conference on Theory and Practice of Software Development, Pisa, Italy, March 23 - 27 1987Hartmut Ehrig, Robert A. Kowalski, Giorgio Levi, Ugo MontanariHäftad, 1987393 kr
Formal and Natural ComputingWilfried Brauer, Hartmut Ehrig, Juhani Karhumäki, Arto K. SalomaaHäftad, 2002559 kr