TY  - RPRT
TI  - Geologic and climatic controls on the radon emanation coefficient
AU  - R.R. Schumann
AU  - L.C.S. Gundersen
PY  - 1997
DO  - 10.1016/s0160-4120(96)00144-4
UR  - https://pubs.usgs.gov/publication/70020044
ID  - 70020044
ER  -