1. Zolotov, Yu.A., Ivanov, V.M., and Amelin, V.G., Khimicheskie test-metody analiza (Chemical Test Methods of Analysis), Moscow: Editoral URSS, 2002.
2. Savvin, S.B., Kuznetsov, V.V., Mikhailova, A.V., and Sheremet’ev, S.V., Ross. khim. zhurn., 2008, vol. 52, no. 2, p. 7.
3. Ostrovskaya, V.M., Zaporozhets, O.A., Budnikov, G.K., and Chernavskaya, N.M., Voda. Indikatornye sistemy (Water: Indication Systems), Moscow, 2002.
4. Savvin, S.B., Shtykov, S.N., and Mikhailova, A.V., Usp. Khim., 2006, vol. 75, no. 4, p. 380.
5. Savvin, S.B. and Mikhailova, A.V., Zhurn. anal. khim., 1996, vol. 51, no. 1, p. 49 [J. Anal. Chem. (Engl. Transl.), vol. 51, no. 1, p. 42].