@misc{indiciae4031511b4123,
  title = {The visual acuity in viewing scaled objects on television compared with that in direct viewing},
  author = {Long, E. R., Jr. and Long, S. A. T.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700002179},
  note = {Source identifier: 19700002179}
}