@misc{indiciae188eef6b1653,
  title = {A comparative study of three techniques for using the spectral matrix in wave analysis},
  author = {Arthur, C. W. and Mcpherron, R. L. and Means, J. D.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770029206},
  note = {Source identifier: 19770029206}
}