| Spectroscopy: X-Ray Flourescence |
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.
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Glazer, M.
| The King George V High-Value Stamps of Bermuda, 1917-1938, Myles Glazer, Marblehead, MA, 1994. Chapter 4.
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Hahn, J.D.
| "Originals and Reprints of Seebeck Issues: A Scientific Method of Classification," The Seebecker, 4(1), June 1992.
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Liston, E.M.
| "A Scientific Investigation of the 'Pink' Problem United States 1861-1868 3c Scott Numbers 64 and 65," The Collectors Club Philatelist, Vol. 90, No. 2, March-April 2011, pp. 83-91.
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Najjar, A.H.
| "Great Britiain: The 1858-1879 1d Rose-Red Plate 77," The Collectors Club Philatelist, Vol. 88, No. 2, September-October 2008, pp. 269-284.
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Odenweller, R.P.
| "New Zealand: Inks Used for the Early Chalon Heads," The Collectors Club Philatelist, Vol. 88, No. 4, July-August 2009, pp. 246-250.
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