1. J.A. Campbell, R.D. Finn, P.M. Smith,J. Lab. Comp. Radiopharm., 13 /1977/ 437.
2. A.G. Silva, O.F. Lemos, J.L.Q. Britto, J.A. Osso, M.A.V. Bastos, A.M.S. Braghirolli, D.F.S. Chamma, G.W.A. Newton, R. Weinreich,Proc. Int. Sym. Appl. Technol. Ion. Rad., 2 /1982/ 1007.
3. E. Lebowitz, M.W. Greene, D.R. Fairchil, P.R. Bradley-Moore, H.L. Atkin, A.N. Ansari, P. Richards, E. Bel Grave,J. Nucl. Med., 16 /1975/ 151.
4. M. Bonardi,Radiochem. Radional. Lett., 42 /1980/ 35.
5. S.M. Qaim, R. Weinreich, H. Ollig,Int. J. Appl. Radiation Isotopes, 30 /1979/ 85.