@book{Tietze2008,
  author    = {Tietze, J{\"u}rgen},
  title     = {{\"U}bungsbuch zur Finanzmathematik. 5., aktualisierte Aufl.},
  publisher = {Vieweg},
  address   = {Wiesbaden},
  isbn      = {978-3-8348-0442-6},
  pages     = {XII, 410 S. : graph. Darst.},
  year      = {2008},
  language  = {de}
}
@book{SchneiderSchneider2008,
  author    = {Schneider, Bettina and Schneider, Wilhelm},
  title     = {Einf{\"u}hrung in die Unternehmensbesteuerung : systematische Darstellung in {\"U}bersichten / Bettina Schneider ; Wilhelm Schneider - 3. Aufl., Studienausg.},
  publisher = {Cuvillier},
  address   = {G{\"o}ttingen},
  isbn      = {978-3-86727-562-0},
  pages     = {Getr. Z{\"a}hlung : graph. Darst.},
  year      = {2008},
  language  = {de}
}
@book{JanzGoedhuysMohnen2008,
  author    = {Janz, Norbert and Goedhuys, Micheline and Mohnen, Pierre},
  title     = {Knowledge-based productivity in "low-tech" industries : evidence from firms in developing countries / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre},
  publisher = {UNU-MERIT},
  address   = {Maastricht},
  pages     = {34 S.},
  year      = {2008},
  language  = {en}
}
@book{JanzGoedhuysMohnen2006,
  author    = {Janz, Norbert and Goedhuys, Micheline and Mohnen, Pierre},
  title     = {What drives productivity in Tanzanian manufacturing firms: technology or institutions? / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre},
  publisher = {UnU-MERIT},
  address   = {Maastricht},
  pages     = {22 S.},
  year      = {2006},
  language  = {en}
}
@book{PietschHerzwurm2009,
  author    = {Pietsch, Wolfram and Herzwurm, Georg},
  title     = {Management von IT-Produkten : Gesch{\"a}ftsmodelle, Leitlinien und Werkzeugkasten f{\"u}r softwareintensive Systeme und Dienstleistungen / Herzwurm, Georg ; Pietsch, Wolfram},
  publisher = {Dpunkt-Verl},
  address   = {Heidelberg},
  isbn      = {978-3-89864-562-1},
  pages     = {XVII, 370 S. : graph. Darst.},
  year      = {2009},
  language  = {de}
}
@book{HoepnerJanzSiersetal.2008,
  author    = {Hoepner, Gert and Janz, Norbert and Siers, Carsten and Honert, Matthias},
  title     = {Zukunftsstudie Vertriebsnavigator / durchgef{\"u}hrt von der Fachhochschule Aachen und Axantos sales consultancy GmbH},
  publisher = {Axantos sales consultancy GmbH},
  address   = {D{\"u}sseldorf},
  pages     = {25 Bl. : graph. Darst.},
  year      = {2008},
  language  = {de}
}
@book{HoepnerJanzSiersetal.2008,
  author    = {Hoepner, Gert and Janz, Norbert and Siers, Carsten and Honert, Matthias},
  title     = {Zukunfts- und Benchmarkstudie Vertriebsnavigator / durchgef{\"u}hrt von der Fachhochschule Aachen und Axantos sales consultancy GmbH},
  publisher = {Axantos sales consultancy GmbH},
  address   = {D{\"u}sseldorf},
  pages     = {28 Bl. : graph. Darst.},
  year      = {2008},
  language  = {de}
}
@book{Weigand2009,
  author    = {Weigand, Christoph},
  title     = {Statistik mit und ohne Zufall : Eine anwendungsorientierte Einf{\"u}hrung . 2. Aufl.},
  publisher = {Physica-Verlag},
  address   = {Heidelberg},
  isbn      = {978-3-7908-2346-2},
  pages     = {XIII, 469 S. : Ill., graph. Darst.},
  year      = {2009},
  language  = {de}
}
@book{SchneiderSchneider2009,
  author    = {Schneider, Bettina and Schneider, Wilhelm},
  title     = {Jahresabschluss und Jahresabschlussanalyse : systematische Darstellung in {\"U}bersichten. 4. Aufl., Studienausg.},
  publisher = {Cuvillier},
  address   = {G{\"o}ttingen},
  isbn      = {978-3-86955-125-8},
  pages     = {Getr. Z{\"a}hlung : graph. Darst.},
  year      = {2009},
  language  = {de}
}
@book{Siedenbiedel2010,
  author    = {Siedenbiedel, Georg},
  title     = {Organisation},
  publisher = {Lucius \& Lucius},
  address   = {Stuttgart},
  isbn      = {978-3-8252-8413-8},
  pages     = {XXVI, 546 S. : Ill., graph. Darst.},
  year      = {2010},
  language  = {de}
}