@misc{indiciaeb62914ffb709,
  title = {A study of course deviations during cross-country soaring},
  author = {Sliwa, S. M. and Sliwa, D. J.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790018901},
  note = {Source identifier: 19790018901}
}