Engels G, Lewerentz C, Schäfer W. Graph Grammar Engineering: A Software Specification Method. In: Proceedings of the 3rd International Workshop on Graph-Grammars and Their Application to Computer Science, Warrenton, VA (USA). Vol 291. Berlin/Heidelberg: Springer; 1987:186-201. doi:dx.doi.org/10.1007/3-540-18771-5
LibreCat: /record/8257
DOI: dx.doi.org/10.1007/3-540-18771-5

Engels G, Lewerentz C, Nagl M, Schäfer W, Schürr A. Building Integrated Software Development Environments, Part I: Tool Specification. ACM Transactions on Software Engineering and Methodology (TOSEM). 1992;1(2):135-167.
LibreCat: /record/7409

Langmann D, Haeb-Umbach R. FRESCO: The French Telephone Speech Data Collection - Part of the European SpeechDat(M) Project. In: ICSLP, Philadelphia. ; 1996.
LibreCat: /record/11853

Reinefeld A, Baraglia R, Decker T, et al. The MOL Project: An Open, Extensible Metacomputer. In: Proc. Heterogenous Computing Workshop (HCW). IEEE Computer Society; 1997:17-31. doi:10.1109/HCW.1997.581407
LibreCat: /record/2442
DOI: 10.1109/HCW.1997.581407

Peckhaus V. Logik, Mathesis universalis und allgemeine Wissenschaft. Leibniz und die Wiederentdeckung der formalen Logik im 19. Jahrhundert. Berlin: Akademie-Verlag; 1997.
LibreCat: /record/17447

Hoege H, Tropf HS, Winsky R, van den Heuvel H, Haeb-Umbach R, Choukri K. European Speech Databases for Telephone Applications. In: ICASSP, Munich. ; 1997.
LibreCat: /record/11819

Karl H. Towards Quality of Service for Parallel Computing: An Overview of the MILAN Project. In: High-Performance Computing and Networking, 7th International Conference, HPCN Europe 1999, Amsterdam, The Netherlands, April 12-14, 1999, Proceedings. ; 1999:841--850. doi:10.1007/BFb0100644
LibreCat: /record/874
DOI: 10.1007/BFb0100644

Engels G, Zamperoni A. Formal Integration of Software Engineering Aspects Using Graph Rewrite Systems - A Typical Experience?! In: Proceedings of the International Workshop on Applications of Graph Transformations with Industrial Relevance (AGTIVE 1999), Kerkrade (The Netherlands). Vol 1779. LNCS. Berlin/Heidelberg: Springer; 2000:359-368. doi:http://dx.doi.org/10.1007/3-540-45104-8_28
LibreCat: /record/8342
DOI: http://dx.doi.org/10.1007/3-540-45104-8_28

Hemsel T, Wallaschek J. State of the art and development trends of ultrasonic linear motors. In: Ultrasonics Symposium, 2000 IEEE. Vol 1. ; 2000:663-666 vol.1. doi:10.1109/ULTSYM.2000.922635
LibreCat: /record/8915
DOI: 10.1109/ULTSYM.2000.922635

Heckel R. Open Petri Nets as Semantic Model for Business Process Integration. In: Proceedings of the 2nd International Colloquium on Petri Net Technologies for Modelling Communication Based Systems. DFG Research Group “Petri Net Technology”; 2001:129-134.
LibreCat: /record/7890