@misc{indiciaeffd8752fc51f,
  title = {Advanced Turbofan Duct Liner Concepts},
  author = {Bielak, Gerald W. and Premo, John W. and Hersh, Alan S.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/19990028621},
  note = {Source identifier: 19990028621}
}