@misc{indiciae7826f7064e57,
  title = {A thermal apparatus for developing a sensitive, stable and linear density gradient.},
  author = {W Fong},
  year = {1971},
  doi = {10.1016/s0015-7368(71)70671-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/5143838/},
  note = {Source identifier: 5143838}
}