@misc{indiciae01a596a095ff,
  title = {Modulated infrared radiant source},
  author = {Stewart, W. F. and Edwards, S. F. and Vann, D. S. and Mccormick, R. F.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810016815},
  note = {Source identifier: 19810016815}
}