@misc{indiciae423994dcc0d0,
  title = {Improved activity sedimentation method.},
  author = {G Yarrison and G L Choules},
  year = {1972},
  doi = {10.1016/0003-2697(72)90427-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/5062881/},
  note = {Source identifier: 5062881}
}