@misc{indiciaee6ec9560ebb9,
  title = {Ecology and distribution of major diatom ecotypes in the southern Fort Union coal region of Montana},
  author = {L.L. Bahls and E.E. Weber and J.O. Jarvie},
  year = {1984},
  doi = {10.3133/pp1289},
  url = {https://pubs.usgs.gov/publication/pp1289},
  note = {Source identifier: pp1289}
}