@Inproceedings{zogaj2012customer,
  author = {Zogaj, S. and Bretschneider, U.},
  title  = {Customer Integration in New Product Development: A Literature Review Concerning the Appropriateness of Different Customer Integration Methods to Attain Customer Knowledge},

  year   = {2012},
  number = {},
  url    = {http://pubs.wi-kassel.de/wp-content/uploads/2013/03/JML_396.pdf},

  const  = {\ text}
}
@Inproceedings{ls_leimeister,
  author = {Blohm, I. and Fähling, J. and Leimeister, J. M. and Krcmar, H. and Fischer, J.},
  title  = {Accelerating customer integration into innovation processes using Pico-Jobs},

  year   = {2010},
  number = {22},
  url    = {http://pubs.wi-kassel.de/wp-content/uploads/2013/03/JML_250.pdf},

  const  = {\ text}
}
@Book{Wullenweber.2003,
  author = {Wüllenweber, Harald},
  title  = {Mehr Kundenbindung durch Organisationales Lernen:  Konzept - Modellierung - empirische Befunde},

  year   = {2003},
  number = {},
  url    = {http://www.gbv.de/dms/zbw/366731688.pdf},

  const  = {\ text}
}
@Book{Kocher.2002,
  author = {Köcher, Anette},
  title  = {Controlling der werbefinanzierten Medienunternehmung},

  year   = {2002},
  number = {},
  url    = {},

  const  = {\ text}
}
@Book{Uebel.2002,
  author = {Uebel, Matthias F.},
  title  = {Praxis des Customer Relationship Management:  Branchenlösungen und Erfahrungsberichte},

  year   = {2002},
  number = {},
  url    = {},

  const  = {\ text}
}
@Book{Block.2001,
  author = {Block, Birgit},
  title  = {Gestaltung und Steuerung einer Hersteller-Händler-Kooperation in der Lebensmittelbranche},

  year   = {2001},
  number = {},
  url    = {},

  const  = {\ text}
}
@Book{Peppers.2000,
  author = {Peppers, Don and Rogers, Martha},
  title  = {Enterprise one-to-one:  Tools for building unbreakable customer relationships in the interactive age},

  year   = {2000},
  number = {},
  url    = {},

  const  = {\ text}
}
@Book{Mertens.1992,
  author = {Mertens, Michael},
  title  = {Kundentypologien im Versicherungsgeschäft mit Privatkunden},

  year   = {1992},
  number = {},
  url    = {},

  const  = {\ text}
}