| Getting a grip on tangible interaction: a framework on physical space and social interaction Recent countries visiting this post |  |
 | 8 | United States |
 | 1 | |
 | 1 | Sweden |
| Getting a grip on tangible interaction: a framework on physical space and social interaction Recent countries visiting this post | |
| 8 | United States |
| 1 | |
| 1 | Sweden |