Reference Library - Raman
| Adema, Kees | "Holland's Track-Boat Markings: A Philatelic Conundrum Solved", The Collectors Club Philatelist, Vol. 87, No. 5, September-October 2008, pp. 291-302. |
| Chaplin, T.D., Jurado-Lopez, A., Clark, R.J.H., and Beech, D.R. | "Identification by Raman microscopy of pigments on early postage stamps: distinction between original 1847 and 1852-1862, forged and reproduction postage stamps of Mauritius", Journal of Raman Spectroscopy, Vol. 35, 2004, pp. 600-604. |