@article{HoST00, title = "Practical Reasoning for Very Expressive Description Logics", author = "Ian Horrocks and Ulrike Sattler and Stephan Tobies", year = "2000", annote = "AKA: Horrocks99m", journal = "Logic Journal of the {IGPL}", number = "3", pages = "239--264", url = "download/2000/HoST00.pdf", volume = "8", }