@misc{indiciaec28381e53dec,
  title = {Electrophoresis in a density gradient.},
  author = {P A CHARLWOOD and A H GORDON},
  year = {1958},
  doi = {10.1042/bj0700433},
  url = {https://pubmed.ncbi.nlm.nih.gov/13596360/},
  note = {Source identifier: 13596360}
}