@misc{indiciaeb2ace3007507,
  title = {ESS equations sometimes do not specify an ESS.},
  author = {S J Clark},
  year = {1986},
  doi = {10.1016/s0022-5193(86)80248-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3657184/},
  note = {Source identifier: 3657184}
}