Billmeyer, F.W., Jr.
| "Universal Color Language Definitions for Some Philatelic Color Aids," The American Philatelist, Vol. 96, No. 6, June 1982, pp. 506-516.
|
Herendeen, D.L, Allen, J.A. and Lera, T.
| "Philatelic Shade Discrimination Based on Measured Color," The London Philatelist, Vol. 120, No. 1384, April 2011, pp. 105-117.
|
Herendeen, D.L, Allen, J.A. and Lera, T.
| "Philatelic Shade Discrimination Based on Measured Color," Published by the Institute for Analytical Philately, November, 2010.
IAP Final Report (slight differences from London Philatelist version)
| |
Kelly, K.L, and Billmeyer, F.W. Jr.
| "APS Manual for Determining Color Designations of Stamp Colors," The American Philatelist, Vol. 95, No. 8, August 1981, pp. 709-717, 758.
|
Lera, T.
| "Colorimetric Analysis of an Enhanced Cancel on a Mauritius 1d Stamp," Fakes Forgeries Experts, No. 14, April 2011, pp.103-104.
| |
Tyler, V.E.
and Peck, G.E.
| "Characterization of Genuine Stamps, Reprints, and Forgeries of the 1867 and 1868 Issues of the Roman States by Diffuse Reflectance Spectroscopy," American Philatelist, Vol. 92, No. 6, pp. 580-587.
|
White, R.H. (ed.)
| Color in Philately, The Philatelic Foundation, New York, 1979.
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