@article{potyondy2004,
  title={A bonded-particle model for rock},
  author={D.O. Potyondy and Peter Cundall},
  year={2004},
  journal={International Journal of Rock Mechanics and Mining Sciences},
  doi={10.1016/j.ijrmms.2004.09.011},
  url={https://doi.org/10.1016/j.ijrmms.2004.09.011}
}