# Primacy analysis in the system of Bulgarian cities

> Research article (Open Physics, 2015) · cited 33× · AI/ML

**Wikidata**: [openalex:W2963210604](https://www.wikidata.org/wiki/openalex:W2963210604)  
**Source**: https://4ort.xyz/entity/primacy-analysis-in-the-system-of-bulgarian-cities