# Universal Visible Sky Factor: A method for calculating the three-dimensional visible sky ratio

> Research article (Building and Environment, 2017) · cited 21× · AI/ML

**Wikidata**: [openalex:W2728811622](https://www.wikidata.org/wiki/openalex:W2728811622)  
**Source**: https://4ort.xyz/entity/universal-visible-sky-factor-a-method-for-calculating-the-three-dimensional-visible-sky-ratio