@inproceedings{DBLP:conf/lpnmr/DelgrandeST07, author = {Delgrande, James P. and Schaub, Torsten and Tompits, Hans}, title = {A Preference-Based Framework for Updating Logic Programs}, booktitle = {{LPNMR}}, series = {Lecture Notes in Computer Science}, volume = {4483}, pages = {71--83}, publisher = {Springer}, year = {2007} }