- AAAI, page 41-43. AAAI Press/MIT Press, (1980)
- AAAI, page 30-35. AAAI Press, (1982)
- IEEE Trans. Pattern Anal. Mach. Intell. 14(2):146-156 (1992)
- Campus-Verl., Frankfurt am Main u.a., 9., aktualisierte und überarb. Aufl., aktualisierte Neuausg. edition, (2009)442 S. : Ill., graph. Darst. .
- Campus, Frankfurt am Main, 1. Aufl. edition, (2010)157 S. ; 186 mm x 110 mm : graph. Darst. .
- Commun. ACM 24(6):381-395 (1981)
- EDBT/ICDT Workshops, volume 360 of ACM International Conference Proceeding Series, page 193-200. ACM, (2009)
- BTW, volume 144 of LNI, page 387-406. GI, (2009)
- Communications of the ACM 24(6):381-395 (1981)
- IEEE Trans. Pattern Anal. Mach. Intell. 8(1):100-105 (1986)
- BTW, volume 180 of LNI, page 710-713. GI, (2011)
- BTW, volume 180 of LNI, page 85-104. GI, (2011)
- Campus-Verl, (2002)
- Communications of the ACM 24(6):381-395 (1981)
- Computer Science - R&D 25(3-4):235-246 (2010)
- GI Jahrestagung 2, volume 176 of LNI, page 404-409. GI, (2010)
- GI Jahrestagung, volume 154 of LNI, page 2000-2014. GI, (2009)
- DEXA 1, volume 6261 of Lecture Notes in Computer Science, page 261-268. Springer, (2010)
- GI Jahrestagung, page 2000-2014. (2009)
- Computer Science - Research and Development (2006)


author