@misc{indiciae322beb31c570,
  title = {A method for differentiating proteins from nucleic acids in intermediate-resolution density maps: cryo-electron microscopy defines the quaternary structure of the Escherichia coli 70S ribosome.},
  author = {C M Spahn and P A Penczek and A Leith and J Frank},
  year = {2000},
  doi = {10.1016/s0969-2126(00)00185-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/10986461/},
  note = {Source identifier: 10986461}
}