@misc{indiciaefe37bf61ce8f,
  title = {Principal Components as a Data Reduction and Noise Reduction Technique},
  author = {Imhoff, M. L. and Campbell, W. J.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19830017886},
  note = {Source identifier: 19830017886}
}