Additive Fluents
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\begin{bibtex} @inproceedings{DBLP:conf/asp/LeeL01,
author = {Joohyung Lee and
Vladimir Lifschitz},
title = {Additive Fluents},
booktitle = {Answer Set Programming},
year = {2001},
ee = {http://www.cs.nmsu.edu/$\sim$tson/ASP2001/14.ps},
crossref = {DBLP:conf/asp/2001},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
\end{bibtex}
