@misc{indiciaeafedd0f41437,
  title = {Single-ring polanret phase-contrast system.},
  author = {M Pluta},
  year = {1987},
  doi = {10.1111/j.1365-2818.1987.tb02851.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3323523/},
  note = {Source identifier: 3323523}
}