TY  - RPRT
TI  - Chemical analysis and modes of occurrence of selected trace elements in a Powder River basin coal and its corresponding simulated cleaned coal
AU  - Curtis A. Palmer
AU  - Stanley J. Mroczkowski
AU  - Allan Kolker
AU  - Robert B. Finkelman
AU  - John H. Bullock
PY  - 2001
DO  - 10.3133/ofr00323
UR  - https://pubs.usgs.gov/publication/ofr00323
ID  - ofr00323
ER  -