@inproceedings{DBLP:conf/wlp/Konczak06a, title = {Weak Order Equivalence for Logic Programs with Preferences}, author = {Konczak, Kathrin}, booktitle = {{WLP}}, pages = {154--163}, publisher = {Technische Universit{\"{a}}t Wien, Austria}, series = {{INFSYS} Research Report}, volume = {1843-06-02}, year = {2006} }