@article{KayaFreitag2022,
  author    = {Adem Kaya and Melina A. Freitag},
  title     = {Conditioning analysis for discrete Helmholtz problems},
  journal   = {Computers and mathematics with applications : an international journal},
  volume    = {118},
  pages     = {171 -- 182},
  doi       = {10.1016/j.camwa.2022.05.016},
  year      = {2022},
}