| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Explanation and Proof in Mathematics: Philosophical and Educational Perspectives | 978-1-4419-O575-8 (1-4419-O575-8) | 2009 | Gila Hanna · Hans Niels Jahnke |
H. P. · Helmut Pillath · Helmut Plath · Helmut Platow · Helmut Plote