@misc{indiciaec6679019b71e,
  title = {Assessment of undiscovered conventionally recoverable petroleum resources of the Timan-Pechora Basin, U.S.S.R., and Barents-northern Kara Shelf},
  author = {G. F. Ulmishek},
  year = {1982},
  doi = {10.3133/ofr821057},
  url = {https://pubs.usgs.gov/publication/ofr821057},
  note = {Source identifier: ofr821057}
}