@misc{indiciae8cbe0be332de,
  title = {Minimum Altitude-Loss Soaring in a Specified Vertical Wind Distribution},
  author = {Pierson, B. L. and Chen, I.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790018900},
  note = {Source identifier: 19790018900}
}