@misc{valle2017optimally,
  title={Optimally solving the joint order batching and picker routing problem},
  author={Cristiano Arbex Valle and John E Beasley and Alexandre Salles da Cunha},
  year={2017},
  eprint={1703.06531},
  archivePrefix={arXiv},
  primaryClass={math.OC},
  doi={10.1016/j.ejor.2017.03.069},
  url={https://arxiv.org/abs/1703.06531}
}