@misc{indiciae4a3c51ad0e8f,
  title = {The thin film iris},
  author = {Landes, H. S. and Manus, E. A. and Ramey, R. L.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690018718},
  note = {Source identifier: 19690018718}
}