- Author: Pradeep Kumar Garg Nitin K. Tripathi Martin Kappas Loveleen Gaur
- Language: English
- Year: 2022
- Author: Prof. Dr. Martin Kappas (auth.)
- Language: German
- Year: 2009
- Author: Martin Kappas & Uwe Groß & Dermot Kelleher
- Language: English
- Year: 2012
- Author: Martin Kappas
- Language: German
- Year: 2009
- Author: Martin Kappas
- Language: German
- Year: 2009