@misc{207211,
  author = {Bradley Alpert and Yu-Hsuan Chen},
  title = {A Representation of Acoustic Waves in Unbounded Domains},
  year = {2002},
  month = {2002-10-01},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.6623},
  language = {en},
}