@misc{indiciae44b005b4f856,
  title = {Metal content of twenty-four petroleums},
  author = {J.S. Ball and W.J. Wenger and H.J. Hyden and C. A. Horr and A.T. Myers},
  year = {2002},
  doi = {10.1021/je60008a038},
  url = {https://pubs.usgs.gov/publication/70010771},
  note = {Source identifier: 70010771}
}