@misc{indiciaeac687784c29a,
  title = {Helicopter model rotor-blade vortex interaction impulsive noise: Scalability and parametric variations},
  author = {Splettstoesser, W. R. and Schultz, K. J. and Boxwell, D. A. and Schmitz, F. H.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19850008517},
  note = {Source identifier: 19850008517}
}