user- Informatik-Spektrum 34(5):434-442 (October 2011)
- Informatik-Spektrum 34(5):462-468 (October 2011)
- Informatik-Spektrum 34(5):443-454 (October 2011)
- Lecture Notes in Artificial Intelligence Springer, Berlin, (2010)
- Proceedings of the Sixth International Conference on Intelligent Environments IE 2010, Kuala Lumpur, Malaysia, page 116-121. (2010)
- ALPSWS2008: Proceedings of the 3rd International Workshop on Applications of Logic Programming to the Semantic Web and Web Services, Udine, Italy, (2008)
- Cambridge University Press, Cambridge, UK, (2009)
- Brooks/Cole, Pacific Grove, CA, (2000)
- University of Chicago Press, Chicago, 2. edition, (1993)
- MIT Press, Cambridge, MA, 2. edition, (1994)
- Lecture Notes in Artificial Intelligence Springer, Berlin, (2010)
- Lecture Notes in Computer Science Springer, Berlin, (2010)
- CSLI Lecture Notes Center for the Study of Language and Information, Stanford, CA, (1989)
- MIT Press, Cambridge, MA, (1983)
- Teubner, Stuttgart, 2. edition, (1994)
- Informatik-Fachberichte Springer, Berlin, (1988)
- Artificial Intelligence Review 33(3):211-259 (2010)
- Knowledge and Data Engineering, IEEE Transactions on 22(11):1492-1506 (November 2010)
- Intelligent Event Processing, Papers from the 2009 AAAI Spring Symposium, page 46-51. (2009)
- Intelligent Event Processing, Papers from the 2009 AAAI Spring Symposium, page 52-53. (2009)
