1. A. ABRÃO, Study of the extraction behavior of various elements by amines of long chains in the presence of thiourea as complexing agent. (Thesis, Instituto de Quimica, Universidade de São Paulo) São Paulo, 1971.
2. IEA-Pub-371;A. Abrão,1975
3. S. A. C. MESTNIK, Separation of99Mo from132Te using thiourea as complexing agent. Application to separation of99Mo from fission products. (Thesis, Instituto de Pesquisas Energéticas e Nucleares) São Paulo, 1988.
4. J. LEGRAND, J. P. PEROLAT, F. LAGOUTINE, Y. LE GALLIC, Table de radionucléides. Commissariat, a l'Energie Atomique, 1975.
5. ALASBIMN, Manual de control de calidad de radiofarmacos. Montevideo, 1986.