@misc{indiciaea1d0accf9904,
  title = {Phase microscopy 1950-1954.},
  author = {O W RICHARDS},
  year = {1954},
  doi = {10.1126/science.120.3121.631},
  url = {https://pubmed.ncbi.nlm.nih.gov/13205201/},
  note = {Source identifier: 13205201}
}