1. Aerial radiological measuring surveys (ARMS) system and procedures employed through FY 69;Anderson,1969
2. Natural gamma spectral peak method for snow measurement from aircraft;Bissell,1974
3. Monitoring snow water equivalent by using natural soil radioactivity;Bissell;Water Resour. Res.,1973
4. Natural gamma radiation detection to measure soil moisture (Abstract);Carroll;AGU Meot. 1979,1979
5. Airborne soil moisture measurement using natural terrestrial gamma radiation;Carroll;Soil. Sci.,1981