| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Kodai no igirisu | 978-4-00-026885-1 (4-00-026885-6) | 2005 | Peter Salway |
| Roman emperor Gunzo <2> ISBN: 4876981647 | 978-4-87698-164-9 (4-87698-164-7) | 2006 | Aelius Spartianus · Tadafumi Kuwayama · Fuminori Inoue |