| A Large Scale Key-Value Store Based on Range-Key Skip Graph and Its Applications Recent countries visiting this post |  |
 | 9 | United States |
 | 2 | Russian Federation |
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| A Large Scale Key-Value Store Based on Range-Key Skip Graph and Its Applications Recent countries visiting this post | |
| 9 | United States |
| 2 | Russian Federation |
| 1 | Germany |
| 1 | Japan |