@article{Grauel2014,
  author    = {Adolf Grauel},
  title     = {Schalenmodell-Approximation f{\"u}r drei K{\"o}rper im Ausgangskanal},
  journal   = {Zeitschrift f{\"u}r Naturforschung, A},
  volume    = {28},
  number    = {2},
  pages     = {185 -- 205},
  doi       = {10.1515/zna-1973-0208},
  year      = {2014},
}