@article{Toennissen2010,
  author    = {T{\"o}nnissen, Stefan},
  title     = {Entwicklung eines Modells zur Pr{\"u}fung der ITGovernance in Anlehnung an den Standard CoBiT},
  series = {Zeitschrift f{\"u}r Interne Revision (ZIR)},
  journal   = {Zeitschrift f{\"u}r Interne Revision (ZIR)},
  issn      = {1868-7814},
  pages     = {35 -- 39},
  year      = {2010},
  language  = {de}
}
@article{Toennissen2013,
  author    = {T{\"o}nnissen, Stefan},
  title     = {Cloud Computing unter CoBiT},
  series = {Zeitschrift f{\"u}r Interne Revision (ZIR)},
  journal   = {Zeitschrift f{\"u}r Interne Revision (ZIR)},
  issn      = {1868-7814},
  pages     = {35 -- 39},
  year      = {2013},
  language  = {de}
}