@misc{indiciae763b3cba979a,
  title = {Spin labels in membranes.},
  author = {A D Keith and R J Mehlhorn},
  year = {1972},
  doi = {10.1016/0009-3084(72)90060-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4339481/},
  note = {Source identifier: 4339481}
}