@article{googlevsibmaconstraintsolvingchallenge,
  title = {Google vs IBM: A Constraint Solving Challenge on the Job-Shop Scheduling Problem},
  author = {Giacomo Da Col and Erich Teppan},
  year = {2019},
  eprint = {1909.08247},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.08247v1},
}