@misc{indiciae80fd56fb7660,
  title = {Helicopter model rotor-blade vortex interaction impulsive noise - Scalability and parametric variations},
  author = {Boxwell, D. A. and Schmitz, F. H. and Splettstoesser, W. R. and Schultz, K. J.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860042920},
  note = {Source identifier: 19860042920}
}