1. Letter from Patrick Rhoads to Randall Erickson, dated October 11, 2001.
2. Preconceptual design for separation of plutonium and gallium by ion exchange
3. Standard Specification for Nudear-Grade Plutonium Dioxide Powder, Sinterahle C757-90-, Reprinted from the Annual Book of ASTM Standards, American Society for Testing and Materials: West Conshohocken, Pennsylvania, 1996.
4. Pope, N.G., Yarbro, S.L., Schreiber, S.B., and Day, R.S. (1997) An Introduction to the Advanced Testing Line for Actinide Separations (ATLAS)-, LA-12156, Los Alamos National Laboratory: Los Alamos, New Mexico; 2-23.