@misc{indiciaec70d66f61ad9,
  title = {Advanced aircraft engine materials trends},
  author = {Dreshfield, R. L. and Gray, H. R. and Levine, S. R. and Signorelli, R.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810018721},
  note = {Source identifier: 19810018721}
}