@misc{indiciaeb65aad681633,
  title = {A density gradient fractionator.},
  author = {P T Englund and H O Smith and E Sandbek},
  year = {1971},
  doi = {10.1016/0003-2697(71)90412-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5551561/},
  note = {Source identifier: 5551561}
}