| Formal and Practical Aspects of Implementing Abstract Data Types in the Prolog Instruction Recent countries visiting this post |  |
 | 5 | United States |
 | 3 | Taiwan |
 | 1 | Russian Federation |
| Formal and Practical Aspects of Implementing Abstract Data Types in the Prolog Instruction Recent countries visiting this post | |
| 5 | United States |
| 3 | Taiwan |
| 1 | Russian Federation |