@misc{indiciae7706854166f9,
  title = {Skylab modal survey testing},
  author = {Nichols, J. J. and Hull, R. E. and Bejmuk, B. I.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19760067252},
  note = {Source identifier: 19760067252}
}