| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Function spaces, differential operators and nonlinear analysis | 978-0-470-21351-3 (0-470-21351-5) | 1989 |
| Inverse Problems in Mathematical Physics: Proceedings of the Lapland Conference on Inverse Problems Held at Saariselka, Finland, 14-20 June 1992 | 978-0-387-57195-9 (0-387-57195-7) | 1993 |