# Periodicity Variation of Solar Activity and Cosmic Rays During Solar Cycles 22 – 24

> Research article (Solar Physics, 2019) · cited 20× · AI/ML

**Wikidata**: [openalex:W2973072980](https://www.wikidata.org/wiki/openalex:W2973072980)  
**Source**: https://4ort.xyz/entity/periodicity-variation-of-solar-activity-and-cosmic-rays-during-solar-cycles-22-24