- Author: Heiko van Schyndel
- Language: English
- Year: 2015
- Author: Gerhart R. Baum Heiko van Schyndel Hristo Smolenov (auth.) Elmar M. Giemulla Bastian R. Rothe (eds.)
- Language: German
- Year: 2008
- Author: Gerhart R. Baum Heiko van Schyndel Hristo Smolenov (auth.) Elmar M. Giemulla Bastian R. Rothe (eds.)
- Language: German
- Year: 2008