@inproceedings{Christ1991,
  author    = {Christ, Andreas},
  title     = {Scattering Matrix Calculation By Means of 3-Dimensional Finite-Difference Method},
  booktitle = {International Workshop of the German IEEE MTT/AP Chapter},
  institution = {Ver{\"o}ffentlichungen außerhalb der Hochschulzeit},
  pages     = {85 -- 91},
  year      = {1991},
  language  = {en}
}