@article{sandhu1996,
  title={Role-based access control models},
  author={Ravi Sandhu and Edward J. Coyne and H.L. Feinstein and Charles E. Youman},
  year={1996},
  journal={Computer},
  doi={10.1109/2.485845},
  url={https://doi.org/10.1109/2.485845}
}