RoseH.AdlerI., and FlanaganF. J., “Use of La2O as a Heavy Absorber in the X-ray Fluorescence Analysis of Silicate Rocks,” U. S. Geological Survey Professional Paper 450–5 (1962), p. 80; Also see, “X-ray Fluorescence Analysis of the Light Elements in Rocks and Minerals,”Appl. Spectry.17, 81 (1963).
2.
AndermannG. and AllenJ. D., “X-ray Emission Analysis of Finished Cements,”Anal. Chem.33, 1695 (1961).
3.
HouseknechtT. M. and PattersonW., “Sample Preparation for X-ray Analysis,”Spectrographer's News Letter, 27, No. 2 (1964), Publ. by Applied Research Laboratories, Glendale, Calif.
4.
KingeryW. D., Introduction to Ceramics (John Wiley & Sons, Inc., New York, 1960), p. 42.