@misc{indiciae3ae0b45b6131,
  title = {Flow structure generated by perpendicular blade vortex interaction and implications for helicopter noise predictions},
  author = {Devenport, William J. and Glegg, Stewart A. L.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19940029701},
  note = {Source identifier: 19940029701}
}