@misc{indiciae4d1e18be0311,
  title = {A second order iteration procedure for correlation of analysis frequencies with test data},
  author = {Ojalvo, I. U. and Pilon, D.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19930045268},
  note = {Source identifier: 19930045268}
}