Experiments on the aesthetic of light and color: 3rd article, combinations of colours
and uncoloured light / by Susie A. Chown. The complementary relations of some systems
of coloured papers / by D. C. MacGregor and D. S. Dix. Some photometrical measurements
/ by W. G. Smith. Stereoscopic vision and its relation to intensity and quality of
light sensation : 1st article, strereoscopic vision and intensity / by T. R. Robinson,
1907
Internet, www.authorities.loc.gov/, 2004-11-05