1. F. Macášek, R. Kopunec,J. Radioanal. Nucl. Chem. Lett., 86 /1984/ 347.
2. Khimiya urana, Ed. B.N. Laskorin, Nauka, Moscow, 1981, pp. 58–91.
3. R.V. Davies, J. Kennedy, C. McLlorory, R. Spence,Nature, 203 /1964/ 1110.
4. F. Macášek, V. Mikulaj, P. Rajec, R. Kopunec, A. Švec, Final Report IAEA Contract 2662/RB, Chemical Institute Comenius University, Bratislava, 1984.
5. W.C. Babcock, D.J. Kelly, D.T. Friesen, In: Proc. Int. Solvent Extraction Conf. ISEC 83, Am. Inst. Chem. Eng., Denver, 1983, p. 373.