@INPROCEEDINGS{HMS2005b,
 AUTHOR        = {Hustadt, Ullrich and Motik, Boris and Sattler, Ulrike},
 TITLE         = {Data Complexity of Reasoning in Very Expressive 
 Description Logics},
 BOOKTITLE     = {Proceedings of the Nineteenth International 
 Joint Conference on Artificial Intelligence (IJCAI 2005)},
 YEAR          = {2005},
 PAGES         = {466--471},
 PUBLISHER     = {International Joint Conferences on
 Artificial Intelligence},
 CADDRESS      = {Edinburgh, Scotland},
 CYEAR         = {2005},
 CMONTH        = jul # {~30--} # aug # {~5},
}