- Author: Šarić Saša
- Language: English
- Year: 2012
- Author: Daniel Senft (auth.)
- Language: English
- Year: 2014
- Author: Daniel Kauer (auth.)
- Language: English
- Year: 2008
- Author: Tim Friehe (auth.)
- Language: English
- Year: 2008
- Author: Jan Peter Sasse (auth.)
- Language: English
- Year: 2011