TY  - RPRT
TI  - Field studies of borehole gamma-ray spectrometer methods for mineral exploration; a selected bibliography
AU  - Frank E. Senftle
PY  - 1980
DO  - 10.3133/ofr80503
UR  - https://pubs.usgs.gov/publication/ofr80503
ID  - ofr80503
ER  -