Knowledge Processing and Information Systems A semantic framework for preference handling in answer set programming
@article{DBLP:journals/corr/cs-AI-0301023,
title = {A semantic framework for preference handling in answer set programming},
author = {Schaub, Torsten and Wang, Kewen},
journal = {CoRR},
volume = {cs.AI/0301023},
year = {2003}
}