von Bezold, 1873, Pogg Ann., 150, 221
Brücke, 1878, Sitzber. Akad. Wiss. Wien, (3), 77, 39
McL, 1931, J. Psychol., 43, 541, 10.2307/1415157
McL, 1937, J. Psychol., 49, 313, 10.2307/1416302
Peirce, 1877, Am. J. Sci., 13, 247, 10.2475/ajs.s3-13.76.247
Hering, 1880, Lotos, 1, 9
Judd, 1948, J. Opt. Soc. Am., 38, 1095
Hurvich, 1955, J. Opt. Soc. Am., 45, 620, 10.1364/JOSA.45.000602
Thomson, 1953, J. Opt. Soc. Am., 43, 890, 10.1364/JOSA.43.000890
Pitt, 1944, Proc. Roy. Soc. (London), B132, 101, 10.1098/rspb.1944.0006
Walraven, 1960, J. Opt. Soc. Am., 50, 780, 10.1364/JOSA.50.000780
Walraven, 1961, J. Opt. Soc. Am., 51, 474, 10.1364/JOSA.51.001113
Walls, 1955, Am. J. Ophthalmol., 39, 8, 10.1016/0002-9394(55)90005-2
Piéron, 1939, Ann. Psychol., 40, 1, 10.3406/psy.1939.5747
Hartline, 1932, J. Cellular Comp. Physiol., 1, 277, 10.1002/jcp.1030010211
van der Velden, 1944, Ned. Tijdschr, Natuurk., 15, 145