1. C. L. Rollinson, in Chemistry of the Coordination Compounds (J. C. Bailar, Ed.), Reinhold, New York, 1956, p. 448.
2. F. G. R. Gimblett, in Inorganic Polymer Chemistry, Butterworth, London, 1963, p. 77.
3. C. L. Rollinson in Radioactive Pharmaceuticals, AEC Symp. Ser., Oak Ridge, 1966, p. 429.
4. L. J. Anghileri,J. Nucl. Biol. Med., 12 (1968) 128.
5. L. J. Anghileri,Z. Naturforsch., 25b (1970) 288.