@misc{indiciaef963f4b2f954,
  title = {Oil and gas reserve growth-a model for the Volga-Ural Province, Russia},
  author = {M.K. Verma and G. F. Ulmishek and A.P. Gilbershtein},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/70022382},
  note = {Source identifier: 70022382}
}