レチナール
“The Carotenase AtCCD1 from Arabidopsis thaliana Is a Dioxygenase”. Journal of Biological Chemistry 281 (15): 9845–9851. doi:10.1074/jbc.M511668200. PMID 16459333.
Wang, Tao; Jiao, Yuchen; Montell, Craig (2007). “Dissection of the pathway required for generation of vitamin A and for Drosophila phototransduction”. Journal of Cell Biology 177 (2): 305–316. doi:10.1083/jcb.200610081. PMC 2064138. PMID 17452532. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2064138/.
Wald, George (1967年). “Nobel Lecture: The Molecular Basis of Visual Excitation”. 2009年2月23日閲覧。
Fernald, Russell D. (2006). “Casting a Genetic Light on the Evolution of Eyes”. Science 313 (5795): 1914–1918.