- Author: Claudia Müller-Ebeling, Christian Rätsch, Surendra Bahadur Shahi
- Language: English
- Year: 2002
- Author: Claudia Müller-Ebeling Christian Rätsch Wolf-Dieter Storl
- Language: English
- Year: 2003
- Author: Claudia Müller-Ebeling Christian Rätsch Wolf-Dieter Storl
- Language: English
- Year: 2003
- Author: Claudia Müller-Ebeling Christian Rätsch
- Language: English
- Year: 2011