1. Tsyganenko, A.Ya., Zhukov, V.I., Myasoedov, V.V., and Zavgorodskii, I.V., Klinicheskaya biokhimiya (Clinical Biochemistry), Moscow: Triada-X, 2002.
2. Biofizicheskaya khimiya. Khimiya biogennykh elementov (Biophysical Chemistry: Chemistry of Biogenic Elements), Ershov, Yu.A., Ed., Moscow: Vysshaya Shkola, 2000.
3. Shekhovtsova, T.N., Chernetskaya, S.V., and Dolmanova, I.F., Zh. Anal. Khim., 1993, vol. 48, no.1, p. 129.
4. Veselova, I.A. and Shekhovtsova, T.N., Anal. Chim. Acta, 1999, vol. 392, p. 151.
5. Vallee, B. and Hoch, F., Proc. Natl. Acad. Sci. U.S.A., 1955, vol. 41, p. 327.