| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Proofs in Competition Math: Volume 1 | 978-1-7986-1120-3 (1-7986-1120-1) | 2019 | Alexander Toller · Dennis Chen |
| Proofs in Competition Math: Volume 2 | 978-1-0924-3071-5 (1-0924-3071-7) | 2019 | Alexander Toller · Dennis Chen |