@misc{indiciae0f6b1d4a89f7,
  title = {Geology and natural gas potential of deep sedimentary basins in the former Soviet Union},
  author = {T. S. Dyman and V.A. Litinsky and G. F. Ulmishek},
  year = {1999},
  doi = {10.3133/ofr99381},
  url = {https://pubs.usgs.gov/publication/ofr99381},
  note = {Source identifier: ofr99381}
}