@article{AGSS86,
  author    = {Ailamazyan, Alfred K. and Gilula, Mikhail M. and Stolboushkin, Alexei P. and Schwartz, Grigorii F.},
  title     = {Reduction of a relational model with infinite domains to the case of finite domains},
  journal   = {Dokl. Akad. Nauk SSSR},
  year      = {1986},
  volume    = {286},
  issue     = {2},
  pages     = {308--311},
  url       = {http://mi.mathnet.ru/dan47310}
}

@inproceedings{DBLP:conf/lics/AvronH91,
  author    = {Arnon Avron and
               Yoram Hirshfeld},
  title     = {On First Order Database Query Languages},
  booktitle = {Proceedings of the Sixth Annual Symposium on Logic in Computer Science
               {(LICS} '91), Amsterdam, The Netherlands, July 15-18, 1991},
  pages     = {226--231},
  publisher = {{IEEE} Computer Society},
  year      = {1991},
  url       = {https://doi.org/10.1109/LICS.1991.151647},
  doi       = {10.1109/LICS.1991.151647},
  timestamp = {Wed, 16 Oct 2019 14:14:54 +0200},
  biburl    = {https://dblp.org/rec/conf/lics/AvronH91.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org}
}

@inproceedings{DBLP:conf/stoc/Vardi82,
  author    = {Moshe Y. Vardi},
  editor    = {Harry R. Lewis and
               Barbara B. Simons and
               Walter A. Burkhard and
               Lawrence H. Landweber},
  title     = {The Complexity of Relational Query Languages (Extended Abstract)},
  booktitle = {Proceedings of the 14th Annual {ACM} Symposium on Theory of Computing,
               May 5-7, 1982, San Francisco, California, {USA}},
  pages     = {137--146},
  publisher = {{ACM}},
  year      = {1982},
  url       = {https://doi.org/10.1145/800070.802186},
  doi       = {10.1145/800070.802186},
  timestamp = {Wed, 14 Nov 2018 10:51:38 +0100},
  biburl    = {https://dblp.org/rec/conf/stoc/Vardi82.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org}
}
