TY  - RPRT
TI  - Scintillation detectors in gamma spectral logging; geometry, absorption and calibration
AU  - Ulrich Schimschal
PY  - 1980
DO  - 10.3133/ofr80688
UR  - https://pubs.usgs.gov/publication/ofr80688
ID  - ofr80688
ER  -