| |
| 2001 | ||
|---|---|---|
| 2 | EE | Francisco Javier González Vieli: A characteristic property of spheres in regular trees. Discrete Mathematics 234(1-3): 143-148 (2001) |
| 1998 | ||
| 1 | EE | Francisco Javier González Vieli: A Two-Spheres Problem on Homogeneous Trees. Combinatorica 18(2): 185-189 (1998) |