@article{pettersen2004,
  title={UCSF Chimera—A visualization system for exploratory research and analysis},
  author={Eric F. Pettersen and Thomas D. Goddard and Conrad C. Huang and Gregory S. Couch and Daniel M. Greenblatt and Elaine C. Meng and Thomas E. Ferrin},
  year={2004},
  journal={Journal of Computational Chemistry},
  doi={10.1002/jcc.20084},
  url={https://doi.org/10.1002/jcc.20084}
}