@misc{indiciaef95cddd5ce6f,
  title = {Simulation verification techniques study: Simulation performance validation techniques document},
  author = {Duncan, L. M. and Reddell, J. P. and Schoonmaker, P. B.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760024181},
  note = {Source identifier: 19760024181}
}