2.J.B. Willis, in Methods of Biochemical Analysis, ed. D. Flick, Wiley-Interscience, New York, 1–67, Vol. 11, 1963.
3.D.C. Manning, ‘Spectral Interferences in Graphite Furnace Atomic Absorption Spectroscopy. I. The Determination of Selenium in an Iron Matrix’, At.Absorpt. Newsl., 17(5), 107–108 (1978).
4.P. Zeeman, ‘Onthe Influence ofMagnetism on theNature of the Light Emitted by a Substance’, Philos. Mag., 43(5), 226–237 (1897).