# Hierarchical structure in language and action: A formal comparison.

> Research article (Psychological Review, 2023) · cited 20× · AI/ML

**Wikidata**: [openalex:W4376132046](https://www.wikidata.org/wiki/openalex:W4376132046)  
**Source**: https://4ort.xyz/entity/hierarchical-structure-in-language-and-action-a-formal-comparison