| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Shapes of Forms: From Gestalt Psychology and Phenomenology to Ontology and Mathematics | 978-0-7923-5246-4 (0-7923-5246-7) | 1998 | |
| The Dawn of Cognitive Science: Early European Contributors | 978-0-7923-6799-4 (0-7923-6799-5) | 2001 | |
| The School of Franz Brentano | 978-0-7923-3766-9 (0-7923-3766-2) | 1995 | M. Libardi · R. Poli |