@misc{indiciaed976ba7d619c,
  title = {Liquid-Crystal Point-Diffraction Interferometer for Wave-Front Measurements},
  author = {Mercer, Carolyn R. and Creath, Katherine},
  year = {1996},
  url = {https://ntrs.nasa.gov/citations/19980008092},
  note = {Source identifier: 19980008092}
}