@inproceedings{baabielutwol-dl09, Author = {Franz Baader and Meghyn Bienvenu and Carsten Lutz and Frank Wolter}, Booktitle = {Proceedings of the Twenty-Second International Workshop on Description Logics (DL 2009)}, Title = {Query answering over {DL ABoxes}: How to Pick the Relevant Symbols}, Year = {2009}}