@article{nilsson1996,
  title={Artificial intelligence: A modern approach},
  author={Nils J. Nilsson},
  year={1996},
  journal={Artificial Intelligence},
  doi={10.1016/0004-3702(96)00007-0},
  url={https://doi.org/10.1016/0004-3702(96)00007-0}
}