- Author: Mario Pomini
- Language: English
- Year: 2014
- Author: Stephen Parsons
- Language: English
- Year: 2003
- Author: Ricardo F. Crespo
- Language: English
- Year: 2013
- Author: Evert Schoorl
- Language: English
- Year: 2012
- Author: Robert Cord
- Language: English
- Year: 2012
- Author: Andy Bielenberg, Raymond Ryan
- Language: English
- Year: 2012