Yokoyama, S. & Radlwimmer, F. B. (1998) The "Five-Sites" Rule and the Evolution of Red and Green Color Vision in
Mammals. Mol. Biol. Evol. 15(5):560-567. ISSN: 0737-4038
Carvalho, L.d.S., Cowing, J.A., Wilkie, S.E., Bowmaker, J.K., Hunt, D.M. (2006)
Shortwave visual sensitivity in tree and flying squirrels reflects changes in lifestyle.
Current Biology Volume 16, Issue 3, pR81-R83, 7 February 2006. doi:10.1016/j.cub.2006.01.045
Douglas R.H., Jeffrey G. (2014)
The spectral transmission of ocular media suggests ultraviolet sensitivity is widespread among mammals.
Proc Roy Soc B 281(1780) doi:10.1098/rspb.2013.2995
Ghim MM, Hodos W (2006)
Spatial contrast sensitivity of birds.
J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 192(5):523-34. doi:10.1007/s00359-005-0090-5
Srinivasan, S., Carlo, C. N., & Stevens, C. F. (2015). Predicting visual acuity from the structure of visual cortex. Proceedings of the National Academy of Sciences 112(25), 7815-7820.
Warrant E.J., Nilsson D.-E. (1998) Absorption of White Light in Photoreceptors. Vision Res., Vol. 38, No. 2, pp. 195-207. PII: S0042-6989(97)00151-X
Stavenga D., Smits R.P., Hoenders B.J. (1993) Simple Exponential Functions Describing the Absorbance Bands of Visual Pigment Spectra. Vision Res. 33(8) pp. 1011-1017. doi:10.1016/0042-6989(93)90237-Q
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