@misc{indiciaec764c59a663b,
  title = {An estimate of recoverable heavy oil resources of the Orinoco Oil Belt, Venezuela},
  author = {Christopher J. Schenk and Troy A. Cook and Ronald R. Charpentier and Richard M. Pollastro and Timothy R. Klett and Marilyn E. Tennyson and Mark A. Kirschbaum and Michael E. Brownfield and Janet K. Pitman},
  year = {2009},
  doi = {10.3133/fs20093028},
  url = {https://pubs.usgs.gov/publication/fs20093028},
  note = {Source identifier: fs20093028}
}