Modification.

T. Y. Cliff Leung, Christian S. Jensen, Richard T. Snodgrass: Modification. The TSQL2 Temporal Query Language 1995: 297-302

@incollection{DBLP:books/kl/snodgrass95/LeungJS95,
  author    = {T. Y. Cliff Leung and
               Christian S. Jensen and
               Richard T. Snodgrass},
  title     = {Modification},
  booktitle = {The TSQL2 Temporal Query Language},
  year      = {1995},
  pages     = {297-302},
  ee        = {db/books/collections/snodgrass95/LeungJS95.html},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

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