First Order Normal Form for Relational Databases and Multidatabases.

@article{DBLP:journals/sigmod/LitwinKK91,
  author    = {Witold Litwin and
               Mohammad A. Ketabchi and
               Ravi Krishnamurthy},
  title     = {First Order Normal Form for Relational Databases and Multidatabases},
  journal   = {SIGMOD Record},
  volume    = {20},
  number    = {4},
  year      = {1991},
  pages     = {74-76},
  ee        = {http://doi.acm.org/10.1145/141356.141389, db/journals/sigmod/LitwinKK91.html},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

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