TY  - RPRT
TI  - Relative importance of physical and economic factors in Appalachian coalbed gas assessment
AU  - E. D. Attanasi
PY  - 1998
DO  - 10.1016/s0166-5162(98)00032-9
UR  - https://pubs.usgs.gov/publication/70020510
ID  - 70020510
ER  -