@misc{indiciaea30811088b8d,
  title = {Flight with lift modulation inside a planetary atmosphere},
  author = {Vinh, N. X. and Bletsos, N. A. and Busemann, A. and Culp, R. D.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770028058},
  note = {Source identifier: 19770028058}
}