TY - RPRT TI - Determination of kaolinite in coal by infrared spectroscopy: A comment AU - R. B. Finkelman AU - F.L. Fiene AU - P.C. Painter PY - 1981 DO - 10.1016/0016-2361(81)90170-8 UR - https://pubs.usgs.gov/publication/70012059 ID - 70012059 ER -