# Laboratory-on-a-smartphone for estimating angularity of granular soils

> Research article (Acta Geotechnica, 2021) · cited 18× · AI/ML

**Wikidata**: [openalex:W3210333902](https://www.wikidata.org/wiki/openalex:W3210333902)  
**Source**: https://4ort.xyz/entity/laboratory-on-a-smartphone-for-estimating-angularity-of-granular-soils