1. (1) F. H. F. Au and V. D. Leavitt, The Radioecology of Transuranics and Other Radionuclides in Desert Ecosystems, eds. W. A. Howard and P. B. Dunaway, NVO-224. 201-242. Las Vegas, Nevada: U. S. Department of Energy, Nevada Operations Office (1982).
2. (2) B. J. Barnhart, E. W. Campbell, J. M. Hardin, E. Martinez, D. E. Caldwell, and R. Hallett, Potential Microbial Impact on Transuranic Wastes Under Conditions Expected in the Waste Isolation Pilot Plant (WIPP). LA-7788-PF. Los Alamos, NM: Los Alamos National Laboratory (1979).
3. (3) J. E. Johnson, S. Svalberg, and D. Paine, The study of Plutonium in aquatic systems of the Rocky Flats Environs. Fort Collins, Colorado: Colorado State University (1974).
4. (4) A. J. Francis, Experientia 46, 840 (1990).
5. (5) A. J. Francis, J. B. Gillow, C. J. Dodge, M. Dunn, K. Mantione, B. A. Strietelmeier, M. E. Pansoy-Hjelvik, and H. W. Papenguth, Radiochim. Acta 82, 347 (1998).