- Author: Peter van Dommelen, A. Bernard Knapp
- Language: English
- Year: 2010
- Author: A. Bernard Knapp, Peter van Dommelen
- Language: English
- Year: 2014
- Author: Peter van Dommelen A. Bernard Knapp
- Language: English
- Year: 2010
- Author: A. Bernard Knapp
- Language: English
- Year: 2009
- Author: A. Bernard Knapp
- Language: English
- Year: 2008