1. A. M. BRUES, O. H. ROBERTSON, AECD-2009, 1947.
2. H. J. M. BOWEN, Biochem. J., 73 (1959) 381.
3. A. E. GREENDALE, D. L. LOVE, A. A. DELUCCHI, Trans. Am. Nucl. Soc., 7 (1964) 334.
4. W. W. MEINKE, Proc. Intern. Conf. Modern Trends in Activation Analysis, College Station, Texas, 1961 p. 36.
5. D. A. BECKER, G. W. SMITH, Proc. Intern. Conf. Modern Trends in Activation Analysis, College Station, Texas, April 19–22, 1965, p. 230.