@misc{indiciae694bf2660944,
  title = {Three-dimensional reconstruction with contrast transfer function correction from energy-filtered cryoelectron micrographs: procedure and application to the 70S Escherichia coli ribosome.},
  author = {J Zhu and P A Penczek and R Schröder and J Frank},
  year = {1997},
  doi = {10.1006/jsbi.1997.3845},
  url = {https://pubmed.ncbi.nlm.nih.gov/9169230/},
  note = {Source identifier: 9169230}
}