B. B. ยท Bundesrechtsanwaltskammer /Bundesnotarkammer
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| The Varangians of Byzantium | Paperback | 978-0-521-03552-1 (0-521-03552-X) | 2007 |
| The Varangians of Byzantium | Hardcover | 978-0-521-21745-3 (0-521-21745-8) | 1979 |