@misc{indiciaeeec61be9f9af,
  title = {Efficent estimation of distribution for extreme observations in sample and nonsample cases Progress report, period ending 31 Dec. 1968},
  author = {Walsh, J. E.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690007334},
  note = {Source identifier: 19690007334}
}