@misc{indiciae47ce1d53814c,
  title = {An unsteady wake model for a hingeless rotor},
  author = {Crews, S. T. and Hohenemser, K. H. and Ormiston, R. A.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740035390},
  note = {Source identifier: 19740035390}
}