@misc{indiciae133d58f77404,
  title = {Optimum performance of static propellers and rotors.},
  author = {Wu, J. C. and Sigman, R. K. and Goorjian, P. M.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730028506},
  note = {Source identifier: 19730028506}
}