@article{PoppelWolf2013,
  author    = {Poppel, Kristin Isabel and Wolf, Martin},
  title     = {M{\"o}glichkeiten und Potentiale von Revisionsmarketing},
  series = {Zeitschrift Interne Revision : ZIR ; Fachzeitschrift f{\"u}r Wissenschaft und Praxis},
  volume    = {48},
  journal   = {Zeitschrift Interne Revision : ZIR ; Fachzeitschrift f{\"u}r Wissenschaft und Praxis},
  number    = {4},
  publisher = {Erich Schmidt Verlag},
  address   = {Berlin},
  issn      = {0044-3816},
  pages     = {200 -- 208},
  year      = {2013},
  language  = {de}
}
@article{WolfAltgen2013,
  author    = {Wolf, Martin and Altgen, Jannik},
  title     = {IT Service Management in der Region Aachen : White Paper},
  pages     = {1 -- 13},
  year      = {2013},
  language  = {de}
}