# A supply-side categorization of airports across global multiple-airport cities and regions

> Research article (GeoJournal, 2018) · cited 20× · AI/ML

**Wikidata**: [openalex:W2790090627](https://www.wikidata.org/wiki/openalex:W2790090627)  
**Source**: https://4ort.xyz/entity/a-supply-side-categorization-of-airports-across-global-multiple-airport-cities-and-regions