@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{Ziegenbein2004,
  author    = {Ziegenbein, Ralf},
  title     = {Improving standards in clinical process management, Hospital Health Care Europe, 2004/2005, M1-M3},
  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}
}