Database States and Their Tableaux.

Alberto O. Mendelzon: Database States and Their Tableaux. XP2 Workshop on Relational Database Theory 1981:

@inproceedings{DBLP:conf/xp/Mendelzon81,
  author    = {Alberto O. Mendelzon},
  title     = {Database States and Their Tableaux},
  booktitle = {XP2 Workshop on Relational Database Theory, June 22-24 1981,
               The Pennsylvania State University, PA, USA},
  year      = {1981},
  ee        = {db/conf/xp/Mendelzon81.html},
  crossref  = {DBLP:conf/xp/1981},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

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