| title | media type | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|---|
| The Homotopy Index and Partial Differential Equations | Paperback | 978-0-387-18067-0 (0-387-18067-2) | 1987 | |
| The Homotopy Index and Partial Differential Equations | Taschenbuch | 978-3-540-18067-8 (3-540-18067-2) | 1987 |