| Embedding handcuffed designs with block size 2 or 3 in 4-cycle systems Recent countries visiting this post |  |
 | 5 | United States |
 | 1 | Russian Federation |
| Embedding handcuffed designs with block size 2 or 3 in 4-cycle systems Recent countries visiting this post | |
| 5 | United States |
| 1 | Russian Federation |