@misc{indiciae056989427e5c,
  title = {Structural efficiency study of graphite-epoxy aircraft rib structures},
  author = {Gurdal, Zafer and Starnes, James H., Jr. and Swanson, Gary D.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910046956},
  note = {Source identifier: 19910046956}
}