P. C. · Phillips Collection · T. C. · T.P
Prestel · University of Washington Press
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Leon Spilliaert: Symbol and Expressionism in 20th Century Belgian Art | 978-0-295-96314-3 (0-295-96314-X) | 1980 | ||
| Ten Americans engl.: After Paul Klee | 978-3-7913-5665-5 (3-7913-5665-8) | 2017 | Zentrum Paul Klee Bern | |