| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Aggregating Clones, Colors, Equations, Iterates, Numbers, and Tiles | 978-0-8176-5243-2 (0-8176-5243-4) | 1995 | |
| Aggregating clones, colors, equations, iterates, numbers and tiles | 978-3-7643-5243-1 (3-7643-5243-4) | 1995 |