@misc{indiciaec2173f6ae442,
  title = {Structural efficiency study of composite wing rib structures},
  author = {Swanson, Gary D. and Gurdal, Zafer and Starnes, James H., Jr.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890002456},
  note = {Source identifier: 19890002456}
}