| Traffic grooming in path, star, and tree networks: complexity, bounds, and algorithms Recent countries visiting this post |  |
 | 9 | United States |
 | 4 | |
 | 1 | Russian Federation |
| Traffic grooming in path, star, and tree networks: complexity, bounds, and algorithms Recent countries visiting this post | |
| 9 | United States |
| 4 | |
| 1 | Russian Federation |