@misc{indiciae20913d2e4e1e,
  title = {Robust pupil center detection using a curvature algorithm},
  author = {Zhu, D. and Moore, S. T. and Raphan, T. and Wall, C. C.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20040141915},
  note = {Source identifier: 20040141915}
}