A Relational Representation of Modification
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\begin{bibtex} @inproceedings{DBLP:conf/aaai/Bayer86, title={A Relational Representation of Modification}, pages={1074-1078}, year={1986}, booktitle={AAAI}, url={http://www.informatik.uni-trier.de/~ley/db/conf/aaai/aaai86-2.html#Bayer86}, author={Samuel Bayer} }\end{bibtex}
