# Common power laws for cities and spatial fractal structures

> Research article (Proceedings of the National Academy of Sciences, 2020) · cited 56× · AI/ML

**Wikidata**: [openalex:W3010464534](https://www.wikidata.org/wiki/openalex:W3010464534)  
**Source**: https://4ort.xyz/entity/common-power-laws-for-cities-and-spatial-fractal-structures