@inproceedings{HoST99, title = "Practical Reasoning for Expressive Description Logics", author = "I. Horrocks and U. Sattler and S. Tobies", year = "1999", annote = "AKA: Horrocks99j", booktitle = "Proc.\ of the 6th Int.\ Conf.\ on Logic for Programming and Automated Reasoning (LPAR'99)", editor = "H. Ganzinger and D. McAllester and A. Voronkov", isbn = "3-540-66492-0", number = "1705", pages = "161--180", publisher = "Springer", series = "Lecture Notes in Artificial Intelligence", url = "http://www.comlab.ox.ac.uk/people/ian.horrocks/Publications/download/1999/lpar99.pdf", }