1. A. Mizuike, in G.H. Morrison, ed., “Trace Analysis: Physical Methods”, Wiley, New York (1965) p. 103.
2. NBS Monograph;J Minczewski,1967
3. A. Mizuike, “Trace Analysis”, Tokyo Kagaku Dojin, Tokyo (1968).
4. O.G. Koch and G.A. Koch-Dedic, “Handbuch der Spurenanalyse”, 2. Aufl., Springer, Berlin (1974).
5. E.B. Sandel and H. Onishi, “Photometrie Determination of Traces of Metals: General Aspects”, 4th ed., Wiley, New York (1978).