# Cosmic variance of the 21-cm global signal

> Research article (Physical review. D/Physical review. D., 2021) · cited 18× · AI/ML

**Wikidata**: [openalex:W3023917563](https://www.wikidata.org/wiki/openalex:W3023917563)  
**Source**: https://4ort.xyz/entity/cosmic-variance-of-the-21-cm-global-signal