TY - RPRT TI - Application of laser microprobe (LAMMA 1000) to "fingerprinting" of coal constituents in bituminous coal AU - P.C. Lyons AU - D.M. Hercules AU - J.J. Morelli AU - G.A. Sellers AU - D. Mattern AU - C. L. Thompson-Rizer AU - F. W. Brown AU - M.A. Millay PY - 1987 DO - 10.1016/0166-5162(87)90048-6 UR - https://pubs.usgs.gov/publication/70014613 ID - 70014613 ER -