@misc{indiciae4a3c84841aa3,
  title = {"Phase-contrast" methods and birefringence.},
  author = {R BARER},
  year = {1951},
  doi = {10.1038/167642a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/14826885/},
  note = {Source identifier: 14826885}
}