@misc{indiciae919b7f6b890e,
  title = {Combined phase-contrast and interference-contrast microscopy.},
  author = {R BARER},
  year = {1952},
  doi = {10.1038/169108a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/14910696/},
  note = {Source identifier: 14910696}
}