| Lifetime Estimation of Large IEEE 802.15.4 Compliant Wireless Sensor Networks Recent countries visiting this post |  |
 | 4 | United States |
 | 1 | |
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| Lifetime Estimation of Large IEEE 802.15.4 Compliant Wireless Sensor Networks Recent countries visiting this post | |
| 4 | United States |
| 1 | |
| 1 | Sweden |
| 1 | Russian Federation |