1. R.C. Robertson, Report No. ORNL-TM-728, Oak Ridge National Laboratory, Oak Ridge, TN, January 1965.
2. R.E. Thoma, Report No. ORNL-4658, Oak Ridge National Laboratory, Oak Ridge, TN, December 1971.
3. H.G. Macpherson, Nucl. Sci. Eng. 90, 374 (1985).
4. D.E. Holcomb, G.F. Flanagan, G.T. Mays, W.D. Pointer, K.R. Robb, and G.L. Yoder, Report No. ONRL/TM-2013/401, Oak Ridge National Laboratory, Oak Ridge, TN, September 2013.
5. G.F. Flanagan, D.E. Holcomb, and S.M. Cetiner, Report No. ORNL/TM-2012/226, Oak Ridge National Laboratory, Oak Ridge, TN, June 2012.