@misc{indiciaecc056a1417d2,
  title = {Single stage, low noise, advanced technology fan. Volume 2: Structural design},
  author = {Schoener, J. L. and Black, G. R. and Roth, R. H.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19760017149},
  note = {Source identifier: 19760017149}
}