@misc{indiciae7991ed984293,
  title = {Advanced core technology - Key to subsonic propulsion benefits},
  author = {Glassman, Arthur J. and Snyder, Christopher A. and Knip, Gerald, Jr.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900036835},
  note = {Source identifier: 19900036835}
}