1. Yu. A. Zolotov, Ros. Khim. Zh. 49(2), 6 (2005).
2. E. A. Gurkovskaya, Sorbts. Khromatogr. Protsessy 5, 621 (2005).
3. I. I. Malakhova, Candidate’s Dissertation in Chemistry (SPb. Gos. Univ., St.-Petersburg, 2003).
4. O. V. Manaenkov, Zh. Anal. Khim. 58, 1093 (2003) [J. Anal. Chem. 58, 979 (2003)].
5. Z. I. Kuvaeva, in Chemistry and Technology of Extraction, Collected vol. (Ros. Khim. Tekh. Univ., Moscow, 2001), Vol. 1, p. 319 [in Russian].