@misc{indiciae85b07e74fa15,
  title = {Fixation disparity in vertical vergence.},
  author = {W A Houtman and B A van der Pol},
  year = {1982},
  doi = {10.1159/000309246},
  url = {https://pubmed.ncbi.nlm.nih.gov/7145333/},
  note = {Source identifier: 7145333}
}