| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Fractions in Realistic Mathematics Education: A Paradigm of Developmental Research | 978-0-7923-1282-6 (0-7923-1282-1) | 1991 |
| The Legacy of Hans Freudenthal | 978-0-7923-2653-3 (0-7923-2653-9) | 1994 |
L. S. · Leni Söderberg · Leoni Stroebel · Liane Strobel · Liane Ströbel · Luan Starova