@inproceedings {MercerRisch03,
author = {Robert E. Mercer and Vincent Risch},
title = {Properties of Maximal Cliques of a Pair-wise Compatibility Graph for Three Nonmonotonic Reasoning Systems},
booktitle = {Answer Set Programming, Advances in Theory and Implementation,Proceedings of the 2nd Intl. ASP'03 Workshop},
editor = {Marina De Vos and Alessandro Provetti},
series = {CEUR Workshop Proceedings},
volume = {78},
address = {Messina, Italy},
month = {September 26--28},
year = {2003}
}