@misc{indiciae4fbd59c7bdc2,
  title = {A concave annular array design, based on phasor summation--Part I: Design methodology.},
  author = {W Q Yuan and S A Johnson and M J Berggren and R S Eidens},
  year = {1988},
  doi = {10.1177/016173468801000404},
  url = {https://pubmed.ncbi.nlm.nih.gov/3074551/},
  note = {Source identifier: 3074551}
}