@misc{indiciaec41f25537775,
  title = {Important Scaling Parameters for Testing Model-Scale Helicopter Rotors},
  author = {Singleton, Jeffrey D. and Yeager, William T., Jr.},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/20040090509},
  note = {Source identifier: 20040090509}
}