# Familiarity and Within-Person Facial Variability: The Importance of the Internal and External Features

> Research article (Perception, 2017) · cited 42× · AI/ML

**Wikidata**: [openalex:W2749144319](https://www.wikidata.org/wiki/openalex:W2749144319)  
**Source**: https://4ort.xyz/entity/familiarity-and-within-person-facial-variability-the-importance-of-the-internal-and-external-features