@misc{indiciaea1602ed1bcf6,
  title = {Pollution reduction technology program for class T4(JT8D) engines},
  author = {Roberts, R. and Fiorentino, A. J. and Diehl, L. A.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780003124},
  note = {Source identifier: 19780003124}
}