@article{Vianu00c,
  title = {Review - Exact and Approximate Aggregation in Constraint Query},
  author = {Victor Vianu},
  year = {2000},
  tags = {constraints, reviewing},
  researchr = {https://researchr.org/publication/Vianu00c},
  cites = {0},
  citedby = {0},
  journal = {ACM SIGMOD Digital Review},
  volume = {2},
}