1. K. A. Lathrop, Radiopharmaceuticals for Generator Produced Radionuclides, Proc. Panel, IAEA, Vienna, 1971, p. 39.
2. R. S. Mani, D. V. S. Narashimhan, Radiopharmaceuticals and Labelled Compounds, IAEA and WHO, Copenhagen, 1973, p. 141.
3. K. Motojima, M. Tanase, Intern. J. App. Radiation Isotopes, 28 (1977) 485.
4. P. J. Sorby, E. J. Lee, R. K. Barnes, R. E. Boyd, Intern. J. Appl. Radiation Isotopes, 34 (1983) 1486.
5. H. Kamioko, S. Mirzadeh, R. M. Lambrecht, R. Knapp, Jr.,K. Dadachova, Radiochim. Acta, 65 (1994) 39.