| Some Progress in Satisfiability Checking for Difference Logic Recent countries visiting this post |  |
 | 3 | United States |
 | 1 | France |
 | 1 | Russian Federation |
| Some Progress in Satisfiability Checking for Difference Logic Recent countries visiting this post | |
| 3 | United States |
| 1 | France |
| 1 | Russian Federation |