Stonestrom, David A, Abraham, Jared D, Andraski, Brian J, Baker, R J, Mayers, C J, Michel, R L, Prudic, David E, Striegl, Robert G, and Walvoord, Michelle A, 2004, Monitoring radionuclide contamination in the unsaturated zone - lessons learned at the Amargosa Desert Research Site, Nye County, Nevada: .