| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Difference Equations by Differential Equation Methods | Hardcover | 978-0-521-87852-4 | 2014 |
| Symmetry Methods for Differential Equations: A Beginner's Guide | Printed Access Code | 978-0-511-62396-7 | 2010 |
| Symmetry Methods for Differential Equations: A Beginner's Guide | Hardcover | 978-0-521-49703-9 | 2000 |
| Symmetry Methods for Differential Equations: A Beginner's Guide | Paperback | 978-0-521-49786-2 | 2000 |