XRM - An Extended (N-ary) Relational Memory.

@article{DBLP:tr/ibm/G320-2096,
  author    = {Raymond A. Lorie},
  title     = {XRM - An Extended (N-ary) Relational Memory},
  journal   = {IBM Research Report},
  publisher = {IBM Cambridge Scientific Center},
  volume    = {G320-2096},
  year      = {1974},
  ee        = {db/labs/ibm/G320-2096.html},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

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