Meredith RW, Gatesy J, Emerling CA, York VM, Springer MS (2013)
Rod Monochromacy and the Coevolution of Cetacean Retinal Opsins.
PLoS Genet 9(4): e1003432. doi:10.1371/journal.pgen.1003432
BISCHOFF, N., NICKLE, B., CRONIN, T., VELASQUEZ, S., & FASICK, J. (2012).
Deep-sea and pelagic rod visual pigments identified in the mysticete whales.
Visual Neuroscience 29(2): 95-103. doi:10.1017/S0952523812000107
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