
- Author: Prof. Dr. Friedrich Keun (auth.)
- Language: German
- Year: 2001

- Author: Kurt Kieselbach (auth.) Andrea Alexander Thomas Rath (eds.)
- Language: German
- Year: 2001

- Author: Friedrich Keun (auth.)
- Language: German
- Year: 1999

- Author: Friedrich Keun (auth.)
- Language: German
- Year: 1997

- Author: Dennis Kraft (auth.)
- Language: German
- Year: 2003

- Author: Ruwantissa Abeyratne (auth.)
- Language: English
- Year: 2012

- Author: Michael E. Porter Clemens Guth (auth.)
- Language: German
- Year: 2012

- Author: Michael E. Porter Clemens Guth (auth.)
- Language: German
- Year: 2012

- Author: Stefan Felder Thomas Mayrhofer (auth.)
- Language: English
- Year: 2011