@misc{indiciae4d6f93b0e966,
  title = {Application of laser microprobe (LAMMA 1000) to "fingerprinting" of coal constituents in bituminous coal},
  author = {P.C. Lyons and D.M. Hercules and J.J. Morelli and G.A. Sellers and D. Mattern and C. L. Thompson-Rizer and F. W. Brown and M.A. Millay},
  year = {1987},
  doi = {10.1016/0166-5162(87)90048-6},
  url = {https://pubs.usgs.gov/publication/70014613},
  note = {Source identifier: 70014613}
}