1. R.M. Rousseau, Advances in X-Ray Analysis, Vol. 22, Plenum Press, New York, 1989, p. 69.
2. G.Y. Tao, P.A. Pella and R.M. Rousseau, “NBSGSC — A Fortran Program for Quantitative X-Ray Fluorescence Analysis”, NBS Technical Note 1213, 1985, p. 66.
3. Zhaogui Liu, “Software Design for EDXRFA”, Doctoral Thesis, Tsinghua University, Beijing, PRC, 1989.