@misc{indiciae4b0884cabcc3,
  title = {Rigid body mode identification of the PAH-2 helicopter using the eigensystem realization algorithm},
  author = {Schenk, Axel and Pappa, Richard S.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930002356},
  note = {Source identifier: 19930002356}
}