Frank Drewes, Renate Klempien-Hinrichs, Hans-Jörg Kreowski: Table-Driven and Context-Sensitive Collage Languages (extended abstract). In W. Thomas, editor, Prelim. Proc. Developments in Language Theory (DLT'99), pages 153-163. 1999. Aachener Informatik-Berichte 99-5.
Frank Drewes, Hans-Jörg Kreowski: Picture generation by collage grammars. In H. Ehrig, G. Engels, H.-J. Kreowski, G. Rozenberg, editors, Handbook of Graph Grammars and Computing by Graph Transformation, volume 2, chapter 11, pages 397-457. World Scientific, 1999.
Renate Klempien-Hinrichs, Hans-Jörg Kreowski, Stefan Taubenberger: Correct translation of mutually recursive function systems into TOL collage grammars. In G. Ciobanu, Gh. Paun, editors, Proc. 12th Intl. Symposium on Fundamentals of Computation Theory (FCT'99), volume 1684 of Lecture Notes in Computer Science, pages 350-361. Springer, 1999.
Marc Andries, Gregor Engels, Annegret Habel, Berthold Hoffmann, Hans-Jörg Kreowski, Sabine Kuske, Detlef Plump, Andy Schürr, Gabriele Taentzer: Graph Transformation for Specification and Programming. Science of Computer Programming 34:1-54, 1999.
Hans-Jörg Kreowski, Sabine Kuske: Graph Transformation Units and Modules. In Hartmut Ehrig, Gregor Engels, Hans-Jörg Kreowski, Grzegorz Rozenberg, editors, Handbook of Graph Grammars and Computing by Graph Transformation, Vol. 2: Applications, Languages and Tools, pages 607-638. World Scientific, Singapore, 1999.
Hans-Jörg Kreowski, Sabine Kuske: Graph Transformation Units with Interleaving Semantics. Formal Aspects of Computing 11:690-723, 1999.
Hartmut Ehrig, Hans-Jörg Kreowski, Ugo Montanari, Grzegorz Rozenberg, editors: Handbook of Graph Grammars and Computing by Graph Transformation, Vol. 3: Concurrency, Parallelism, and Distribution. World Scientific, 1999.
Hartmut Ehrig, Gregor Engels, Hans-Jörg Kreowski, Grzegorz Rozenberg, editors: Handbook of Graph Grammars and Computing by Graph Transformation, Vol. 2: Applications, Languages and Tools. World Scientific, 1999.
Egidio Astesiano, Hans-Jörg Kreowski, Bernd Krieg-Brückner, editors: Algebraic Foundations of Systems Specification. Springer, 1999.
Hartmut Ehrig, Hans-Jörg Kreowski: Refinement and Implementation. In E. Astesiano, H.-J. Kreowski, B. Krieg-Brückner, editors, Algebraic Foundations of Systems Specification, pages 201-242. Springer, 1999.
Marc Andries, Gregor Engels, Annegret Habel, Berthold Hoffmann, Hans-Jörg Kreowski, Sabine Kuske, Detlef Plump, Andy Schürr, Gabriele Taentzer: Graph Transformation for Specification and Programming. Sci. Comput. Program. 34:1-54, 1999.
