@misc{indiciae1d09fd3d33ad,
  title = {Assessment of undiscovered oil and gas resources of the Chad Basin Province, North-Central Africa},
  author = {Michael E. Brownfield and Christopher J. Schenk and Ronald R. Charpentier and Timothy R. Klett and Troy A. Cook and Richard M. Pollastro and Marilyn E. Tennyson},
  year = {2010},
  doi = {10.3133/fs20103096},
  url = {https://pubs.usgs.gov/publication/fs20103096},
  note = {Source identifier: fs20103096}
}