@misc{indiciaedb031865f853,
  title = {Fiber optic frequency transfer link},
  author = {Primas, Lori E. and Sydnor, Richard L. and Lutes, George F.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910018643},
  note = {Source identifier: 19910018643}
}