@misc{indiciaee2d7207e41fa,
  title = {Fast spectral-domain method for acoustic scattering problems.},
  author = {X M Xu and Q H Liu},
  year = {2001},
  doi = {10.1109/58.911735},
  url = {https://pubmed.ncbi.nlm.nih.gov/11370366/},
  note = {Source identifier: 11370366}
}