# ETL-YOLO v4: A face mask detection algorithm in era of COVID-19 pandemic

> Research article (Optik, 2022) · cited 49× · AI/ML

**Wikidata**: [openalex:W4223490837](https://www.wikidata.org/wiki/openalex:W4223490837)  
**Source**: https://4ort.xyz/entity/etl-yolo-v4-a-face-mask-detection-algorithm-in-era-of-covid-19-pandemic