@misc{indiciaea664462f81fb,
  title = {Density gradient fractionation by piston displacement.},
  author = {D H Coombs},
  year = {1975},
  doi = {10.1016/0003-2697(75)90683-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/1190456/},
  note = {Source identifier: 1190456}
}