1. T. I. TAYLOR, R. H. ANDERSON, W. W. HAVENS, Jr., Science, 114,5 (1951) 391.
2. D. BRUNE, K. JIRLOW, Nukleonik, 6 (1964) 242.
3. D. BRUNE, Anal. Chim. Acta, 46 (1969) 17.
4. H. AL-SHAHRISTANI, K. ABBASS, J. Radioanal. Chem., 27 (1975) 105.
5. H. W. NASS, Proc. Intern. Conf. on Modern Trends in Activation Analysis, Gaithersburg, Oct. 7–11, 1968, NBS Spec. Publication 312, Vol. I, 563.