1. W. B. Nelp in Radiopharmaceuticals, G. Subramanian, B. A. Rodes, J. F. Copper, V. J. Sodd (Eds.), p. 349, New York, 1975.
2. Radioisotope Production and Quality Control, IAEA Technical Report Series STI/DOC/10/128, p. 737, Vienna, 1971.
3. D. L. Fortman, V. J. Sodd, Radiopharmaceuticals II, Published by the Society of Nuclear Medicine, p. 15, New York, 1979.
4. R. Maass, J. Alverez, C. Arriaga,Int. J. Appl. Radiation Isotopes, 18 (1969) 653.
5. M. S. Lin, H. S. Winchell,J. Nucl. Med., 13 (1971) 58.