TY  - RPRT
TI  - Attention turns to naturally occurring methane seepage
AU  - Keith A. Kvenvolden
AU  - Thomas Lorenson
AU  - W.S. Reeburgh
PY  - 2006
DO  - 10.1029/01eo00275
UR  - https://pubs.usgs.gov/publication/70208245
ID  - 70208245
ER  -