Relation between directional sensitivity and spectral response curves in human cone vision.

@article{Walraven1960RelationBD,
  title={Relation between directional sensitivity and spectral response curves in human cone vision.},
  author={Pieter L. Walraven and Maarten A. Bouman},
  journal={Journal of the Optical Society of America},
  year={1960},
  volume={50},
  pages={780-4}
}