@misc{indiciae86d8a9cbe462,
  title = {Paramagnetic labeling studies. 1. A new method for labeling proteins with a stable paramagnetic nitroxide radical.},
  author = {T E Wagner and C J Hsu},
  year = {1970},
  doi = {10.1016/0003-2697(70)90324-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4320581/},
  note = {Source identifier: 4320581}
}