
- Author: Richard Doug
- Language: English
- Year: 2013

- Author: Leifer Larry, Meinel Christoph, Plattner Hasso
- Language: English
- Year: 2011

- Author: Leifer Larry, Meinel Christoph, Plattner Hasso
- Language: English
- Year: 2011

- Author: Laurin Cyndi, Morningstar Craig
- Language: English
- Year: 2009

- Author: Higgs Malcolm, Rowland Deborah
- Language: English
- Year: 2008