@inproceedings{Freuder89,
  title = {Partial Constraint Satisfaction},
  author = {Eugene C. Freuder},
  year = {1989},
  tags = {constraints, C++},
  researchr = {https://researchr.org/publication/Freuder89},
  cites = {0},
  citedby = {0},
  pages = {278-283},
  booktitle = {IJCAI},
}