@misc{indiciae05b5899e2a8a,
  title = {Observations on the wet ashing of oils and asphaltenes},
  author = {Herbert Mordecai Ezekiel},
  year = {1955},
  doi = {10.3133/tem864},
  url = {https://pubs.usgs.gov/publication/tem864},
  note = {Source identifier: tem864}
}