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@ARTICLE{Kleefeld:827643,
      author       = {Kleefeld, Andreas},
      title        = {{T}he {T}ransmission {P}roblem for the {H}elmholtz
                      {E}quation in {R}³},
      journal      = {Computational methods in applied mathematics},
      volume       = {12},
      number       = {3},
      issn         = {1609-9389},
      address      = {Berlin},
      publisher    = {De Gruyter},
      reportid     = {FZJ-2017-01757},
      pages        = {330-350},
      year         = {2012},
      ddc          = {510},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.2478/cmam-2012-0008},
      url          = {https://juser.fz-juelich.de/record/827643},
}