TY  - RPRT
TI  - A method for determining soil gas 220Rn (thoron) concentrations.
AU  - A R Hutter
PY  - 1995
DO  - 10.1097/00004032-199506000-00012
UR  - https://pubmed.ncbi.nlm.nih.gov/7759264/
ID  - 7759264
ER  -