Modeling Agent-Based Systems with Graph Transformation and UML
R. Heckel, in: Proceedings of the Dagstuhl-Seminar 99451 on Rigorous Analysis and Design for Software Intensive Systems, 1999.

Extending UML for Modeling of Multimedia Applications
S. Sauer, G. Engels, in: Proceedings of the IEEE Symposium on Visual Languages (VL 1999), Tokyo (Japan), IEEE Computer Society, Tokyo, Japan, 1999, pp. 80–87.

Basic Properties of Double Pullback Graph Transitions
H. Ehrig, R. Heckel, M. Llabrés, F. Orejas, Basic Properties of Double Pullback Graph Transitions, Technical University of Berlin, 1999.

UML Collaboration Diagrams and Their Transformation to Java
G. Engels, R. Hücking, S. Sauer, A. Wagner, UML Collaboration Diagrams and Their Transformation to Java, University of Paderborn, Department of Computer Science, 1999.

SOCCA Extended with UML like Packages
G. Engels, P. Jan t’Hoen, R. Dassen, L. Groenewegen, I. G. Sprinkhuizen-Kuyper, P. Koopman, SOCCA Extended with UML like Packages, Leiden Institute of Advanced Computer Science, 1999.

A Formalisation of SOCCA using Z, part 1: The Type Level Concepts
G. Engels, R. Dassen, L. Groenewegen, I. G. Sprinkhuizen-Kuyper, P. Koopman, P. Jan t’Hoen, A Formalisation of SOCCA Using Z, Part 1: The Type Level Concepts, Leiden Institute of Advanced Computer Science, 1999.

UML-basierte Modellierung von Multimediaanwendungen
S. Sauer, G. Engels, in: Modellierung 1999, Workshop Der Gesellschaft Für Informatik e. V. (GI), März 1999 in Karlsruhe, Teubner, Stuttgart, Karlsruhe, Germany, 1999, pp. 155–170.

OMMMA: An Object-Oriented Approach for Modeling Multimedia Information Systems
S. Sauer, G. Engels, in: Proceedings of the Workshop on Multimedia Information Systems (MIS 1999), Indian Wells, CA (USA), Indian Wells, California, USA, 1999, pp. 64–71.

An Algebra of Graph Derivations using Finite (co-) limit Double Theories
A. Corradini, M. Große-Rhode, R. Heckel, in: Selected Papers of the 13th International Workshop on Recent Trends in Algebraic Development Techniques (WADT 1998), Lisbon (Portugal), Springer, Berlin/Heidelberg, 1999, pp. 92–106.

From SOS Specifications to Structured Coalgebras: How to Make Bisimulation a Congruence
A. Corradini, R. Heckel, U. Montanari, in: Proceedings of the 2nd Workshop on Coalgebraic Methods in Computer Science (CMCS 99), Elsevier, Amsterdam, The Netherlands, 1999, pp. 118–141.

Dynamic Meta Modelling: A Graphical Approach to Operational Semantics
G. Engels, R. Heckel, S. Sauer, in: Proceedings of the Workshop on Rigorous Modeling and Analysis with the UML: Challenges and Limitations (Satellite Event of the Conference on Onject-Oriented Programming, Systems, Languages, and Applications (OOPSLA 1999)), Denver, CO (USA), 1999.

MVC-Based Modeling Support for Embedded Real-Time Systems
G. Engels, S. Sauer, in: Proceedings of OMER Workshop, Herrsching, Germany, Herrsching, Universität der Bundeswehr München, Fakultät für Informatik, 1999, pp. 11–14.

An Assessment of Aspect Language Design
K. Mehner, A. Wagner, in: Proceedings of the Young Researchers Workshop (Satellite Event of the Generative and Component-Based Software Engineering (GCSE 1999)), Erfurt (Germany), 1999.

On the Role of Method Families in Aspect Oriented Programming
K. Mehner, A. Wagner, in: Proceedings of the ECOOP Workshop on Aspect Oriented Programming, Lisboa (Spain), Springer, Berlin/Heidelberg, 1999, pp. 305–306.

Ein Vorgehensmodell für die Multimedia-Entwicklung mit Autorensystemen
R. Depke, G. Engels, K. Mehner, S. Sauer, A. Wagner, Informatik Forschung Und Entwicklung 14 (1999) 83–94.

Formalization of the development process for a software-hardware reflexodiagnostic tool
A. Cherchago, V. Finaev, Scientific Bulletin of Academy of Information Technologies in Education, Science and Balneology 3 (1999).

Graph Transformation for Specification and Programming
M. Andries, G. Engels, A. Habel, B. Hoffmann, H.-J. Kreowski, S. Kuske, D. Plump, A. Schürr, G. Taentzer, Science of Computer Programming 34 (1999) 1–54.

Handbook of Graph Grammars and Computing by Graph Transformation: Vol. 2: Applications, Languages, and Tools
H. Ehrig, G. Engels, H.J. Kreowski, G. Rozenberg, Handbook of Graph Grammars and Computing by Graph Transformation: Vol. 2: Applications, Languages, and Tools, World Scientific Publishing Co., Inc., River Edge, NJ, USA, 1999.

A View-based Approach to System Modeling Based on Open Graph Transformation Systems
R. Heckel, G. Engels, H. Ehrig, G. Taentzer, in: Handbook of Graph Grammars and Computing by Graph Transformations, Volume 2: Applications, Languages and Tools, World Scientific, Singapore, 1999, pp. 639–668.

Classification and Comparison of Module Concepts for Graph Transformation Systems
R. Heckel, G. Engels, H. Ehrig, G. Taentzer, in: Handbook of Graph Grammars and Computing by Graph Transformations, Volume 2: Applications, Languages and Tools, World Scientific, Singapore, 1999, pp. 669–689.