- Author: Timothy Reuter
- Language: English
- Year: 2000
- Author: David Abulafia
- Language: English
- Year: 1999
- Author: Christopher Allmand
- Language: English
- Year: 1998
- Author: David Luscombe Jonathan Riley-Smith
- Language: English
- Year: 2004
- Author: David Luscombe Jonathan Riley-Smith
- Language: English
- Year: 2004