TY  - RPRT
TI  - Mercury content and petrographic composition in Pennsylvanian coal beds of Indiana, USA
AU  - Maria Mastalerz
AU  - A. Drobniak
AU  - G. Filippelli
PY  - 2006
DO  - 10.1016/j.coal.2005.10.002
UR  - https://pubs.usgs.gov/publication/70028161
ID  - 70028161
ER  -