@misc{indiciaed8afbf2155d8,
  title = {Free vibrations of thin-walled semicircular graphite-epoxy composite frames},
  author = {Noor, Ahmed K. and Carden, Huey D. and Peters, Jeanne M.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910051739},
  note = {Source identifier: 19910051739}
}