# Biometric Authentication Using the PPG: A Long-Term Feasibility Study

> Research article (Sensors, 2018) · cited 72× · AI/ML

**Wikidata**: [openalex:W2800533254](https://www.wikidata.org/wiki/openalex:W2800533254)  
**Source**: https://4ort.xyz/entity/biometric-authentication-using-the-ppg-a-long-term-feasibility-study