@techreport{ViethHammerMaier2005,
  type      = {Working Paper},
  author    = {Vieth, Matthias and Hammer, A. and Maier, F.},
  title     = {A critical analysis of the co-plot method},
  series = {International University in Germany, School of Business Administration / Working paper},
  journal   = {International University in Germany, School of Business Administration / Working paper},
  number    = {32},
  publisher = {School of Business Administration, Intern. Univ. in Germany},
  address   = {Bruchsal},
  pages     = {22 Bl{\"a}tter},
  year      = {2005},
  language  = {en}
}
@techreport{Vieth2004,
  type      = {Working Paper},
  author    = {Vieth, Matthias},
  title     = {Positionierung von Business Schools in Deutschland mit Co-plot},
  series = {Betriebswirtschaftliches Institut f{\"u}r Anlagen und Systemtechnologien / Arbeitspapiere},
  journal   = {Betriebswirtschaftliches Institut f{\"u}r Anlagen und Systemtechnologien / Arbeitspapiere},
  publisher = {IAS},
  address   = {M{\"u}nster},
  organization    = {Betriebswirtschaftliches Institut f{\"u}r Anlagen und Systemtechnologien},
  pages     = {VIII, 78 Seiten},
  year      = {2004},
  language  = {de}
}
@techreport{ViethEschweiler2003,
  type      = {Working Paper},
  author    = {Vieth, Matthias and Eschweiler, Maurice},
  title     = {Preisdeterminanten bei Spielertransfers in der Fußball-Bundesliga - Eine theoretische und empirische Analyse},
  series = {Betriebswirtschaftliches Institut f{\"u}r Anlagen und Systemtechnologien / Arbeitspapiere},
  journal   = {Betriebswirtschaftliches Institut f{\"u}r Anlagen und Systemtechnologien / Arbeitspapiere},
  number    = {32},
  publisher = {IAS},
  address   = {M{\"u}nster},
  organization    = {Betriebswirtschaftliches Institut f{\"u}r Anlagen und Systemtechnologien},
  pages     = {VI, 40 Seiten},
  year      = {2003},
  language  = {de}
}