@misc{indiciae3adc22b8e7c3,
  title = {CF6 jet engine performance deterioration results},
  author = {Lewis, R. J. and Humerickhouse, C. E. and Paas, J. E.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780019106},
  note = {Source identifier: 19780019106}
}