@misc{indiciaea8f14f3dda8a,
  title = {A summary of methods for analyzing nonstation- ary data},
  author = {Bendat, J. S. and Thrall, G. P.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650023541},
  note = {Source identifier: 19650023541}
}