Representing Actions in Extended Logic Programming

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\begin{bibtex} @inproceedings{DBLP:conf/iclp/GelfondL92,

 author    = {Michael Gelfond and
              Vladimir Lifschitz},
 title     = {Representing Actions in Extended Logic Programming},
 booktitle = {JICSLP},
 year      = {1992},
 pages     = {559-573},
 bibsource = {DBLP, http://dblp.uni-trier.de}

}

\end{bibtex}