@misc{indiciaefa516447490f,
  title = {Experimental verification of nanometer level optical pathlength control on a flexible structure},
  author = {O'Neal, Michael and Eldred, Daniel and Liu, Dankai and Redding, David},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19930031595},
  note = {Source identifier: 19930031595}
}