- Author: Michael F. Bird
- Language: English
- Year: 2016
- Author: Darren E. Grem
- Language: English
- Year: 2016
- Author: Ulrich G. Leinsle
- Language: English
- Year: 2010
- Author: Anthony Milton
- Language: English
- Year: 2017
- Author: Rowan Strong
- Language: English
- Year: 2017
- Author: Stuart Wolfendale
- Language: English
- Year: 2013
- Author: Jeremy Morris
- Language: English
- Year: 2017
- Author: Luigi Giussani
- Language: English
- Year: 2013
- Author: Susan Neylan
- Language: English
- Year: 2002