| Secure Range Queries in Tiered Sensor Networks Recent countries visiting this post |  |
 | 8 | United States |
 | 7 | |
 | 1 | China |
 | 1 | Taiwan |
 | 1 | India |
| Secure Range Queries in Tiered Sensor Networks Recent countries visiting this post | |
| 8 | United States |
| 7 | |
| 1 | China |
| 1 | Taiwan |
| 1 | India |