@misc{indiciaefbdd0d4a9244,
  title = {Selection index estimation from partial multivariate normal data},
  author = {Pfaffenberger, R. C. and Smith, W. B.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710038902},
  note = {Source identifier: 19710038902}
}