@misc{indiciae83ba8d495b40,
  title = {Sustained small oscillations in nonlinear control systems},
  author = {George, J. H. and Gunderson, R. W. and Hahn, H.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760031855},
  note = {Source identifier: 19760031855}
}