@misc{indiciaeb2bae678068d,
  title = {Absolute travel distance from optic flow.},
  author = {Harald Frenz and Markus Lappe},
  year = {2005},
  doi = {10.1016/j.visres.2004.12.019},
  url = {https://pubmed.ncbi.nlm.nih.gov/15792843/},
  note = {Source identifier: 15792843}
}