# Mid-Air Pointing on Ultra-Walls

> Research article (ACM Transactions on Computer-Human Interaction, 2015) · cited 86× · AI/ML

**Wikidata**: [openalex:W2079467012](https://www.wikidata.org/wiki/openalex:W2079467012)  
**Source**: https://4ort.xyz/entity/mid-air-pointing-on-ultra-walls