@misc{indiciae9eb8c4a6a93f,
  title = {Time-to-Passage Judgments in Nonconstant Optical Flow Fields},
  author = {Kaiser, Mary K. and Hecht, Heiko},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/19970010712},
  note = {Source identifier: 19970010712}
}