@book{FockeSteinbeck2018,
  author    = {Focke, Markus and Steinbeck, J{\"o}rn},
  title     = {Steigerung der Anlagenproduktivit{\"a}t durch OEE-Management : Definitionen, Vorgehen und Methoden - von manuell bis Industrie 4.0},
  publisher = {Springer Fachmedien},
  address   = {Wiesbaden},
  isbn      = {978-3-658-21456-2},
  doi       = {10.1007/978-3-658-21456-2},
  year      = {2018},
  language  = {de}
}
@book{Weigand2006,
  author    = {Weigand, Christoph},
  title     = {Statistik mit und ohne Zufall : eine anwendungsorientierte Einf{\"u}hrung ; mit 10 Tabellen / Christoph Weigand},
  publisher = {Physica-Verl.},
  address   = {Heidelberg},
  isbn      = {3-7908-1693-0},
  pages     = {XIII, 421 S. : graph. Darst.},
  year      = {2006},
  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{Weigand2019,
  author    = {Weigand, Christoph},
  title     = {Statistik mit und ohne Zufall : Eine anwendungsorientierte Einf{\"u}hrung},
  edition   = {3. Aufl.},
  publisher = {Springer Spektrum},
  address   = {Berlin, Heidelberg},
  isbn      = {978-3-662-59309-7},
  doi       = {10.1007/978-3-662-59309-7},
  pages     = {499 S.},
  year      = {2019},
  language  = {de}
}
@book{Maercker1997,
  author    = {Maercker, Gisela},
  title     = {Statistical inference in conditional heteroskedastic autoregressive models},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {3-8265-2486-1},
  pages     = {87 S.: graph. Darst.},
  year      = {1997},
  language  = {en}
}
@book{Wessling1998,
  author    = {Weßling, Matthias},
  title     = {Soziale Handlungskompetenz durch Verhaltenstrainings : Seminarbeispiele f{\"u}r zuk{\"u}nftige F{\"u}hrungskr{\"a}fte, Trainer und Existenzgr{\"u}nder},
  publisher = {Neinhaus},
  address   = {Stuttgart},
  isbn      = {3-87575-014-4},
  pages     = {40 S.},
  year      = {1998},
  language  = {de}
}
@book{Pietsch1995,
  author    = {Pietsch, Wolfram},
  title     = {Software quality management III : [... held in Seville in April 1995] / [Third International Conference on Software Quality Management]. Ed.: M. Ross},
  publisher = {Computational Mechanics Publ.},
  address   = {Southampton [u.a.]},
  isbn      = {1853123099},
  year      = {1995},
  language  = {en}
}
@book{GrapHeinemann1992,
  author    = {Grap, Rolf Dietmar and Heinemann, Olaf},
  title     = {So optimieren Sie Ihr Labor-Management : effiziente Organisation im industriellen Labor ; ein Praxisleitfaden ; [Ergebnisse des Arbeitskreises "Datenermittlungsmethoden"des REFA-Fachausschusses Chemie] / von Olaf Heinemann ...},
  publisher = {Verl. T{\"U}V Rheinland},
  address   = {K{\"o}ln},
  isbn      = {3-8249-0060-2},
  pages     = {113 S. : graph Darst.},
  year      = {1992},
  language  = {de}
}
@book{Pietschmann1995,
  author    = {Pietschmann, Bernd P.},
  title     = {Sitzungsverhalten von Managern. Entwicklung und Anwendung einer Methode zur Ermittlung sitzungsbeeinflussender Faktoren},
  publisher = {Dt. Univ.-Verl.},
  address   = {Wiesbaden},
  isbn      = {3-8244-6225-7},
  pages     = {XXVII, 272 S. : graph. Darst.},
  year      = {1995},
  language  = {de}
}
@book{JanzEblingGottschalketal.2000,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {Services in the Fu­ture: Innovation Activities in the Service Sector. Survey 1999 (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {2000},
  language  = {en}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Licht, Georg},
  title     = {Services in the Future. Innovation Activities in the Service Sector. Survey 1998 (English translation) / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {en}
}
@book{SiedenbiedelEislerMertz2000,
  author    = {Siedenbiedel, Georg and Eisler-Mertz, Christiane},
  title     = {Schl{\"u}sselqualifikationen im Marketing},
  publisher = {Fortis [u.a.]},
  address   = {K{\"o}ln [u.a.]},
  pages     = {281 S. : Ill., graph. Darst.},
  year      = {2000},
  language  = {de}
}
@book{JacobsJarke1994,
  author    = {Jacobs, Stephan and Jarke, Matthias},
  title     = {Requirements information management : the NATURE approach / RWTH Aachen, Fachgruppe Informatik. M. Jarke},
  publisher = {RWTH, Fachgruppe Informatik},
  address   = {Aachen},
  pages     = {27 S : graph. Darst.},
  year      = {1994},
  language  = {en}
}
@book{Olbertz2015,
  author    = {Olbertz, Klaus},
  title     = {Rente mit 63 : Voraussetzungen, Hinzuverdienstgrenzen, Abschl{\"a}ge, Auswirkungen},
  publisher = {nwb},
  address   = {Herne},
  isbn      = {978-3-482-66171-6},
  pages     = {35 S. : graph. Darst.},
  year      = {2015},
  language  = {de}
}
@book{Pietsch1996,
  author    = {Pietsch, Wolfram},
  title     = {Reengineering und Wirtschaftlichkeit},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {3-540-60603-3},
  pages     = {230 S.},
  year      = {1996},
  language  = {de}
}
@book{ChwallekFelden2006,
  author    = {Chwallek, Constanze and Felden, Birgit},
  title     = {RatingCheck : Wertsch{\"o}pfungskette / Chwallek, Constanze ; Felden, Birgit},
  publisher = {Deutscher Sparkassen Verlag},
  address   = {Stuttgart},
  year      = {2006},
  language  = {en}
}
@book{Janz2000,
  author    = {Janz, Norbert},
  title     = {Quellen f{\"u}r Innovationen : Analyse der ZEW-Innovationserhebungen 1999 im Verarbeitenden Gewerbe und im Dienstleistungssektor / Norbert Janz (Hrsg.)},
  publisher = {ZEW},
  address   = {Mannheim},
  pages     = {55 S : graph. Darst.},
  year      = {2000},
  language  = {de}
}
@book{JanzEblingGottschalketal.2000,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Niggemann, Hiltrud},
  title     = {Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Sur­vey 1999 Report to the Federal Ministry of Education and Research (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {2000},
  language  = {en}
}
@book{JanzEblingGottschalketal.1999,
  author    = {Janz, Norbert and Ebling, G{\"u}nther and Gottschalk, Sandra and Licht, Georg},
  title     = {Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Survey 1998 (English translation) / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann},
  publisher = {ZEW Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung},
  address   = {Mannheim},
  year      = {1999},
  language  = {en}
}
@book{Grap1998,
  author    = {Grap, Rolf Dietmar},
  title     = {Produktion und Beschaffung: eine praxisorientierte Einf{\"u}hung},
  publisher = {Vahlen},
  address   = {M{\"u}nchen},
  isbn      = {3-8006-2321-8},
  pages     = {XVII, 344 S. : graph. Darst.},
  year      = {1998},
  language  = {de}
}