Barbara K Nickel · Barbara Nickel · K. Nickel
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Hannah Waters and the Daughter of Johann Sebastian Bach | 978-0-14-305078-0 (0-14-305078-8) | 2005 |
| The Secret Wish of Nannerl Mozart | 978-1-894549-08-0 (1-894549-08-2) | 2000 |