B. Otto · Barbara Ott · Barbara Otto Marcin Otto · Barbara Otto-Treutmann
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Here is the News part 1 + CD | 978-83-88840-93-7 (83-88840-93-2) | 2009 | Marcin Otto |
| Here is the News part 2 + CD | 978-83-7561-006-2 (83-7561-006-2) | 2009 | " |