@misc{indiciae88fcbc27826c,
  title = {Replica grating study Interim report, 1 Jan. - 30 Jun. 1968},
  author = {Gunter, R. C., Jr.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680072891},
  note = {Source identifier: 19680072891}
}