1. D. E. RAESIDE, Nucl. Medicine Technol. (1974) No. 2.
2. E. T. KUCERA, R. R. HINRICH, Radioanal. Chem., 32 (1976) 137.
3. W. S. LYON, Proc. Intern. Symp. Application of Technology of Ionic Radiation, Vol. 2, 1982, p. 833.
4. R. ZAGHLOUL, M. OBEID, R. HENKELMANN, Radiochem. Radioanal. Letters, 15 (1973) 363.
5. R. ZAGHLOUL, M. OBEID, R. HENKELMANN, Radiochem. Radioanal. Letters, 17 (1974) 17.