@misc{indiciae2b26e7d6f5af,
  title = {Animations for petroleum systems; 36 short MPEG movies},
  author = {D. G. Howell and J.P. Swinchatt and J.F. Vigil},
  year = {1999},
  doi = {10.3133/ofr9921},
  url = {https://pubs.usgs.gov/publication/ofr9921},
  note = {Source identifier: ofr9921}
}