| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| East & West in the Crusader States: Context Contacts Confrontations II Acts of the Congress Held at Hernen Castle in May 1997 | 978-90-429-0786-7 (90-429-0786-X) | 1999 | aK. Ciggaar |
| East and West in the Crusader States. Context - Contacts - Confrontations. Acta of the Congress Held at Hernen Castle in May 1993 | 978-90-6831-792-3 (90-6831-792-X) | 1996 | " |
| East and West in the Crusader States. Context - Contacts - Confrontations III. Acta of the congress held at Hernen Castle in September 2000 | 978-90-429-1287-8 (90-429-1287-1) | 2003 | " |