Knowledge Processing and Information Systems Expressing preferences in default logic
@article{DBLP:journals/ai/DelgrandeS00,
title = {Expressing preferences in default logic},
author = {Delgrande, James P. and Schaub, Torsten},
journal = {Artif. Intell.},
number = {1-2},
pages = {41--87},
volume = {123},
year = {2000}
}