TY  - RPRT
TI  - Coalbed methane in Hungary, workshop and field trips: September 14 - October 1, 2002
AU  - Edwin R. Landis
PY  - 2003
DO  - 10.3133/ofr0386
UR  - https://pubs.usgs.gov/publication/ofr0386
ID  - ofr0386
ER  -