@article{DBLP:journals/tods/Hellerstein98,
  author       = {Joseph M. Hellerstein},
  title        = {Optimization Techniques for Queries with Expensive Methods},
  journal      = {{ACM} Trans. Database Syst.},
  volume       = {23},
  number       = {2},
  pages        = {113--157},
  year         = {1998},
  url          = {https://doi.org/10.1145/292481.277627},
  doi          = {10.1145/292481.277627},
  timestamp    = {Tue, 06 Nov 2018 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/journals/tods/Hellerstein98.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}

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