1. R. I. Edwards, W, A. M. Riele, in:M. H. I. Baird andC. Hanson (Eds), Handbook of Solvent Extraction Technology, New York, 1983, p. 725.
2. J. Lingen, L. Shiyan, Liu Guarg Cheng, Shi Jingxnan, R. Manchang, Solvent Extr. Ion Exch. (1984) No. 4 613.
3. A. A. Mazurova, L. M., Gindin, Zh. Neorg. Khim., 10 (1965) 489.
4. K. Z. Beyermann, Anal. Chem., 200 (1964) 183.
5. M. A. Khattak, R. J., Magee, Talanta, 12 (1965) 733.