@misc{indiciae214ef1026a33,
  title = {Gravitational Acceleration as a Cue for Absolute Size and Distance},
  author = {Hecht, Heiko and Kaiser, Mary K. and Banks, Martin S. and Hart, Sandra G.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/20020006041},
  note = {Source identifier: 20020006041}
}