Fomins, S. Multispectral analysis of color vision deficiency tests. Materials Science. 2011, 17 (1): 104–108. doi:10.5755/j01.ms.17.1.259.
Cole, Barry L. The handicap of abnormal colour vision. Clinical and Experimental Optometry. 1972, 55 (8): 304–310. doi:10.1111/j.1444-0938.1972.tb06271.x.