| Time and Location-Critical Emergency Message Dissemination for Vehicular Ad-Hoc Networks Recent countries visiting this post |  |
 | 6 | United States |
 | 1 | China |
 | 1 |
| Time and Location-Critical Emergency Message Dissemination for Vehicular Ad-Hoc Networks Recent countries visiting this post | |
| 6 | United States |
| 1 | China |
| 1 |