@misc{indiciae6e0203617ad0,
  title = {Beamforming in an acoustic shadow},
  author = {Havelock, David and Stinson, Michael and Daigle, Gilles},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940019746},
  note = {Source identifier: 19940019746}
}