@misc{indiciae270118160876,
  title = {A simple device for making a standard inverted phase-contrast microscope movable.},
  author = {J Calvet and M C Calvet},
  year = {1981},
  doi = {10.1016/0165-0270(81)90043-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/7024651/},
  note = {Source identifier: 7024651}
}