1. The Description Logic Handbook,2003
2. The undecidability of the domino problem;Berger,1966
3. P. Blackburn, Nominal tense logic and other sorted intensional frameworks, Ph.D. Thesis, University of Edinburgh, 1990
4. Towards service description logics;Bonatti,2002
5. Undecidability results for description and dynamic logics with recursion and counting;Bonatti,2003