@book{BaumannBeenkenSandk{\"u}hler2013,
  author    = {Baumann, Frank and Beenken, Matthias and Sandk{\"u}hler, Hans-Ludger},
  title     = {Handbuch Maklermanagement},
  publisher = {Haufe},
  address   = {Freiburg},
  isbn      = {978-3-648-02408-9},
  pages     = {352},
  year      = {2013},
  language  = {de}
}
@book{BeenkenSandk{\"u}hler2018,
  author    = {Beenken, Matthias and Sandk{\"u}hler, Hans-Ludger},
  title     = {Das neue Versicherungsvertriebsrecht},
  publisher = {C. H. Beck},
  address   = {M{\"u}nchen},
  isbn      = {978-3-406-71274-6},
  pages     = {319},
  year      = {2018},
  language  = {de}
}
@article{BeenkenSandk{\"u}hler2017,
  author    = {Beenken, Matthias and Sandk{\"u}hler, Hans-Ludger},
  title     = {Problematische Eile in der IDD-Umsetzung},
  series = {Zeitschrift f{\"u}r Versicherungswesen},
  volume    = {68 (2017)},
  number    = {5},
  url       = {https://nbn-resolving.org/urn:nbn:de:hbz:dm13-29333},
  pages     = {150 -- 154},
  year      = {2017},
  language  = {de}
}