@misc{indiciae4964c152d494,
  title = {Improving aircraft energy efficiency},
  author = {Povinelli, F. P. and Klineberg, J. M. and Kramer, J. J.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19760036627},
  note = {Source identifier: 19760036627}
}