TY  - RPRT
TI  - Environmentally critical elements in channel and cleaned samples of Illinois coals
AU  - I. Demir
AU  - R.R. Ruch
AU  - H.H. Damberger
AU  - R.D. Harvey
AU  - J.D. Steele
AU  - K.K. Ho
PY  - 1998
DO  - 10.1016/s0016-2361(97)00164-6
UR  - https://pubs.usgs.gov/publication/70020706
ID  - 70020706
ER  -