| The Quadratic Assignment Problem with a Monotone Anti-Monge and a Symmetric Toeplitz Matrix: Easy and Hard Cases Recent countries visiting this post |  |
 | 4 | United States |
 | 1 |
| The Quadratic Assignment Problem with a Monotone Anti-Monge and a Symmetric Toeplitz Matrix: Easy and Hard Cases Recent countries visiting this post | |
| 4 | United States |
| 1 |