@article{glover1986,
  title={Future paths for integer programming and links to artificial intelligence},
  author={Fred Glover},
  year={1986},
  journal={Computers & Operations Research},
  doi={10.1016/0305-0548(86)90048-1},
  url={https://doi.org/10.1016/0305-0548(86)90048-1}
}