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3. F. Bernstein, “Particle Size and Mineralogical Effects in Mining Applications”, Advances in X-Ray Analysis, Vol. 6, University of Denver, Plenum Press, New York, 1963, p. 436.
4. H. Uchikawa, “X-Ray Analysis of Light Elements in Powdered Samples”, Industrial X-Ray Analysis, (Japan), Vol. 1, No. 60, 1964, p. 101.
5. P. Blanquet, “Theory of X-Ray Fluorescence Analysis of Powdered Samples and Slurries”, Minerals and Metals, Le Bureau de Recherches Géologiques et Minières, Paris, 1964.