@misc{indiciaee87611aa160a,
  title = {The fractionation of crude petroleum in capillary diffusion},
  author = {J. Elliott Gilpin and Marshall P. Cram and David T. Day},
  year = {1908},
  doi = {10.3133/b365},
  url = {https://pubs.usgs.gov/publication/b365},
  note = {Source identifier: b365}
}