@book{HufnagelRueth2007,
  author    = {Hufnagel, W. and R{\"u}th, D.},
  title     = {Internes Rechnungswesen, LE 1-5},
  address   = {Hagen},
  year      = {2007},
  language  = {mul}
}
@book{HufnagelTeutemacher2007,
  author    = {Hufnagel, W. and Teutemacher, T.},
  title     = {Betriebliches Rechnungswesen, Externes Rechnungswesen, LE 1-4},
  address   = {Hagen},
  year      = {2007},
  language  = {mul}
}
@book{Hufnagel2009,
  author    = {Hufnagel, W.},
  title     = {Managementsysteme, LE1},
  address   = {Hagen},
  year      = {2009},
  language  = {mul}
}
@book{HufnagelHoldt2002,
  author    = {Hufnagel, W. and Holdt, W.},
  title     = {Betriebliches Rechnungswesen, Externes Rechnungswesen LE 1-4},
  address   = {Hagen},
  year      = {2002},
  language  = {mul}
}
@book{HufnagelTeutemacher2004,
  author    = {Hufnagel, W. and Teutemacher, T.},
  title     = {Externes Rechnungswesen, LE 1-4},
  address   = {Hagen},
  year      = {2004},
  language  = {mul}
}
@book{Hufnagel2010,
  author    = {Hufnagel, W.},
  title     = {Managementsysteme, LE 1},
  address   = {Hagen},
  year      = {2010},
  language  = {mul}
}
@book{HufnagelKuehn2009,
  author    = {Hufnagel, W. and K{\"u}hn, R.},
  title     = {Betriebliches Rechnungswesen, Externes Rechnungswesen, LE 1-4},
  address   = {Hagen},
  year      = {2009},
  language  = {mul}
}
@book{HufnagelRueth2010,
  author    = {Hufnagel, W. and R{\"u}th, D.},
  title     = {Internes Rechnungswesen, LE 1-5},
  address   = {Hagen},
  year      = {2010},
  language  = {mul}
}
@book{Hufnagel2011,
  author    = {Hufnagel, W.},
  title     = {Management unterst{\"u}tztes Controlling, LE1 - LE 4},
  address   = {M{\"u}nster},
  year      = {2011},
  language  = {mul}
}
@misc{Ziegenbein2016,
  author    = {Ziegenbein, R.},
  title     = {\#KMU - Herausforderung digitale Transformation, FI-Forum 2016 am 16. November 2016 in Frankfurt am Main},
  year      = {2016},
  language  = {mul}
}
@article{Ziegenbein2012,
  author    = {Ziegenbein, Ralf},
  title     = {Evaluating a Project},
  series = {Jarosinski, M.; Robinson, N. (Hrsg.): Managing Course-Based Export/Import Projects - A Handbook for Teachers of International Business, Warschau},
  journal   = {Jarosinski, M.; Robinson, N. (Hrsg.): Managing Course-Based Export/Import Projects - A Handbook for Teachers of International Business, Warschau},
  year      = {2012},
  language  = {mul}
}
@article{KerkaKriegesmannSchwering2009,
  author    = {Kerka, Friedrich and Kriegesmann, Bernd and Schwering, Markus G.},
  title     = {Evaluating innovation ideas: a comprehensive approach to New Product Development},
  series = {INT. J. TECHNOLOGY INTELLIGENCE AND PLANNING, Vol. 5, No. 2},
  journal   = {INT. J. TECHNOLOGY INTELLIGENCE AND PLANNING, Vol. 5, No. 2},
  pages     = {118 -- 137},
  year      = {2009},
  language  = {mul}
}
@article{Ziegenbein2004,
  author    = {Ziegenbein, Ralf},
  title     = {Improving standards in clinical process management, Hospital Health Care Europe, 2004/2005, M1-M3},
  year      = {2004},
  language  = {mul}
}
@article{SchrollSchwering2002,
  author    = {Schroll, Markus and Schwering, Markus G.},
  title     = {Mit Argus Augen},
  series = {UMWELTMAGAZIN, 32. Jahrgang},
  journal   = {UMWELTMAGAZIN, 32. Jahrgang},
  pages     = {52 -- 53},
  year      = {2002},
  language  = {mul}
}
@incollection{KerkaSchweringStriewe2011,
  author    = {Kerka, Friedrich and Schwering, Markus G. and Striewe, Frank},
  title     = {Innovationsorientierte Marktforschung},
  series = {Pepels, Werner (Hrsg.): Produktmanagement - Digitale Fachbibliothek},
  booktitle = {Pepels, Werner (Hrsg.): Produktmanagement - Digitale Fachbibliothek},
  address   = {D{\"u}sseldorf},
  year      = {2011},
  language  = {mul}
}
@article{KriegesmannKerkaStrieweetal.2005,
  author    = {Kriegesmann, Bernd and Kerka, Friedrich and Striewe, Frank and Schwering, Markus G.},
  title     = {Lernende Organisation: {\"U}berf{\"a}llige Korrekturen am Konzept},
  series = {PERSONALF{\"U}HRUNG},
  journal   = {PERSONALF{\"U}HRUNG},
  number    = {3},
  pages     = {48 -- 55},
  year      = {2005},
  language  = {mul}
}
@article{SchweringStriewe2004,
  author    = {Schwering, Markus G. and Striewe, Frank},
  title     = {Strategische Neuausrichtung gestalten},
  series = {DRUCKSPIEGEL, 59. Jahrgang, Nr. 13},
  journal   = {DRUCKSPIEGEL, 59. Jahrgang, Nr. 13},
  pages     = {11 -- 13},
  year      = {2004},
  language  = {mul}
}
@article{Ziegenbein2002,
  author    = {Ziegenbein, Ralf},
  title     = {Evidenzbasiertes Prozeßmanagement},
  series = {Eiff, W. von et al. (Hrsg.), Der Krankenhausmanager, Loseblattsammlung, Erg{\"a}nzungslieferung},
  journal   = {Eiff, W. von et al. (Hrsg.), Der Krankenhausmanager, Loseblattsammlung, Erg{\"a}nzungslieferung},
  pages     = {1 -- 26},
  year      = {2002},
  language  = {mul}
}
@incollection{KriegesmannSchweringLamping2003,
  author    = {Kriegesmann, Bernd and Schwering, Markus G. and Lamping, Stefanie},
  title     = {Dynamische Mittelst{\"a}ndler gehen eigene Wege},
  series = {Sp{\"a}th, Lothar (Hrsg.): TOP 100 2003 - Ausgezeichnete Innovatoren im deutschen Mittelstand},
  booktitle = {Sp{\"a}th, Lothar (Hrsg.): TOP 100 2003 - Ausgezeichnete Innovatoren im deutschen Mittelstand},
  address   = {Frankfurt},
  pages     = {172 -- 176},
  year      = {2003},
  language  = {mul}
}
@incollection{MeyerSchwering2002,
  author    = {Meyer, J{\"o}rn-Axel and Schwering, Markus G.},
  title     = {Schwerpunktbeitrag Marketing},
  series = {Specht, Dieter; M{\"o}hrle, Martin G. (Hrsg.): Gabler Lexikon Technologiemanagement - Management von Innovationen und neuen Technologien im Unternehmen},
  booktitle = {Specht, Dieter; M{\"o}hrle, Martin G. (Hrsg.): Gabler Lexikon Technologiemanagement - Management von Innovationen und neuen Technologien im Unternehmen},
  address   = {Wiesbaden},
  pages     = {168 -- 173},
  year      = {2002},
  language  = {mul}
}