@misc{indiciaeb4d45693253f,
  title = {Rotor systems research aircraft predesign study. Volume 3: Predesign report},
  author = {Schmidt, S. A. and Linden, A. W.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720025366},
  note = {Source identifier: 19720025366}
}