@misc{indiciaea4204e84b30f,
  title = {NASTRAN nonlinear vibration analysis of beam and frame structures},
  author = {Mei, C. and Rogers, J. L., Jr.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750023427},
  note = {Source identifier: 19750023427}
}