Barrons Educational Series · Delphin-Vlg., Köln
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Die Sterne des Himmels | 978-3-7735-5401-7 (3-7735-5401-X) | 1988 | ||
| Stars: Charts for 1999-2002: Photos, Maps, Charts, and Drawings | 978-0-7641-1196-9 (0-7641-1196-5) | 1999 | Joachim Ekrutt | |