G. Engels and W. Schäfer, Programmentwicklungsumgebungen: Konzepte und Realisierung. Stuttgart: Teubner, 1989.

M. Dellnitz and B. Werner, “Computational methods for bifurcation problems with symmetries—with special attention to steady state and Hopf bifurcation points,” Journal of Computational and Applied Mathematics, pp. 97–123, 1989.

B. Just, F. Meyer auf der Heide, and A. Wigderson, “On computations with integer division,” RAIRO - Theoretical Informatics and Applications, pp. 101–111, 1989.

M. Dietzfelbinger and F. Meyer auf der Heide, “An optimal parallel dictionary,” in Proceedings of the first annual ACM symposium on Parallel algorithms and architectures  - SPAA ’89, 1989.

F. Meyer auf der Heide, “On genuinely time bounded computations,” in STACS 89, Berlin/Heidelberg, 1989.

F. Meyer auf der Heide and R. Wanka, “Time-optimal simulations of networks by universal parallel computers,” in STACS 89, Berlin/Heidelberg, 1989.

F. Meyer auf der Heide, “Computing minimum spanning forests on 1- and 2-dimensional processor arrays,” in STACS 89, Berlin, Heidelberg, 1989.

R. Haeb-Umbach and H. Meyr, “A systematic approach to carrier recovery and detection of digitally phase modulated signals on fading channels,” IEEE Transactions on Communications, 1989.

H.-J. Wunderlich and S. Hellebrand, “The Pseudo-Exhaustive Test of Sequential Circuits,”10.1109/test.1989.82273__in IEEE International Test Conference (ITC’89), 1989, pp. 19–27, doi:10.1109/test.1989.82273 .

R. Noé, H. RODLER, A. EBBERG, G. GAUKEL, and F. AURACHER, “PATTERN-INDEPENDENT FSK HETERODYNE TRANSMISSION WITH ENDLESS POLARIZATION CONTROL AND A 119 PHOTOELECTRONS BIT RECEIVER SENSITIVITY,”10.1080/01468038908202887__FIBER AND INTEGRATED OPTICS, vol. 8, no. 4, pp. 303–306, 1989, doi:10.1080/01468038908202887 .

R. Noé, J. GIMLETT, R. VODHANEL, and S. TSUJI, “POLARIZATION-INSENSITIVE, 500 MBIT/S FSK TRANSMISSION OVER 153KM BY PASSIVE POLARIZATION SWITCHING,”10.1049/el:19890003__ELECTRONICS LETTERS, vol. 25, no. 1, pp. 4–5, 1989, doi:10.1049/el:19890003 .

R. Noé, J. GIMLETT, R. VODHANEL, and S. TSUJI, “POLARIZATION-INSENSITIVE, 500 MBIT/S FSK TRANSMISSION OVER 153KM BY PASSIVE POLARIZATION SWITCHING,”10.1049/el:19890003__ELECTRONICS LETTERS, vol. 25, no. 1, pp. 4–5, 1989, doi:10.1049/el:19890003 .

F. J. Rammig and W. Müller, “ODICE: Object-Oriented Hardware Description in CAD Environment,” 1989.

J. Hilgert and K. H. Hofmann, “Compactly Embedded Cartan Algebras and Invariant Cones in Lie Algebras,” Advances Math., vol. 75, pp. 168–201, 1989.

J. Hilgert, “A Note on Howe’s Oscillator Semigroup,” Ann. Inst. Fourier, vol. 39, pp. 663–688, 1989.

J. Hilgert, K. H. Hofmann, and J. D. Lawson, Eds., Lie Groups, Convex Cones, and Semigroups. Oxford: Oxford University Press, 1989.

H. Kleine Büning and T. Lettmann, “Perspektiven für die Logikprogrammierung,” in Workshop Wissensrepräsentation in Expertensystemen, 1988, pp. 56–78.

G. Engels, T. Janning, and W. Schäfer, “A Highly Integrated Tool Set for Program Development Support,” in Proceedings of the conference on ACM SIGSMALL/PC symposium on ACTES (SIGSMALL 1988), Cannes (France), 1988, pp. 1–10.

G. Engels, U. Hohenstein, L. Neugebauer, G. Saake, and H.-D. Ehrich, “Konzeption einer integrierten Datenbank-Entwurfsumgebung,” in Proceedings of DBTA/SI Data Dictionaries und Entwicklungswerkzeuge für Datenbank-Anwendungen, Zürich, Switzerland, 1988, pp. 151–157.

G. Engels, U. Hohenstein, G. Saake, and H.-D. Ehrich, “Auf dem Weg zu einer integrierten Datenbank-Entwurfsumgebung,” in Proceedings of the GI-Workshop on “Sprachspezifische Programmierumgebungen,” 1988, pp. 38–51.