| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| How to define the structure of relationship and action in the concept of human being in Germany and Peru - a cross-cultural study | 978-3-638-70308-6 (3-638-70308-8) | 2007 |
| Introduction to the Schoolwide Enrichment Model by Joseph Renzulli | 978-3-668-08708-8 (3-668-08708-3) | 2015 |
| Leadership orientation | 978-3-638-78942-4 (3-638-78942-X) | 2007 |