@article{Luhmann2004,
  author    = {Luhmann, Hans-Jochen},
  title     = {Zweifel und Diagnose im offenen System},
  journal   = {Berliner Republik},
  volume    = {6},
  number    = {4},
  pages     = {26 -- 34},
  year      = {2004},
  language  = {de}
}