1. De Soete, D. R. Gijbels and J. Hoste, Neutron Activation Analysis. John Wiley and Sons: New York, NY. (1972).

2. F. Girardi, G. Guzzi and J. Pauly, Anal. Chem. 37 (1965) 1085.

3. isotopes.lbl.gov/toips/greatch.pdf .

4. S. Rubin, T. O. Passell and E. Bailey, Anal. Chem. 29 (1957) 736.

5. L.C. Feldman, J.W. Mayer, ‘Fundamentals of Surface and Thin Film Analysis’, North Holland 1986.

6. RBS simulation program RUMP: http://www.genplot.com/