@misc{indiciaedad15c1208a3,
  title = {Replica grating study Interim report, 1 Jul. - 31 Dec. 1967},
  author = {Gunter, R. C., Jr.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680010584},
  note = {Source identifier: 19680010584}
}