@misc{indiciae8581c0861bd8,
  title = {Improved procedures for eigenvalue approximation and sensitivities for active structures},
  author = {Ponslet, Eric and Haftka, Raphael T. and Cudley, Harley H.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930036308},
  note = {Source identifier: 19930036308}
}