@article{xcsp3coreaformatforrepresenting,
  title = {XCSP3-core: A Format for Representing Constraint Satisfaction/Optimization Problems},
  author = {Frédéric Boussemart and Christophe Lecoutre and Gilles Audemard and Cédric Piette},
  year = {2020},
  eprint = {2009.00514},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2009.00514v4},
}