08.11.00 Russell Shor (JCK senior editor) "Diamond Grading Reports: Flawless or Imperfect ?" (this article appeared in the July 1995 issue of JCK) 
 21.12.99 J.S.Dodson (Blackett Laboratory, Imperial College, London)
"A statistical assessment of brilliance and fire for the round brilliant cut diamond"
(was published in OPTICA ACTA, 1978, v.25, N.8, p.681-692)
 
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