@misc{indiciae9891baae64d0,
  title = {Stanford-USGS shrimp-RG ion microprobe: A new approach to determining the distribution of trace elements in coal},
  author = {A. Kolker and J. L. Wooden and H.M. Persing and R. A. Zielinski},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/70022481},
  note = {Source identifier: 70022481}
}