# On the role of orthography in L2 vowel production: The case of Polish learners of German

> Research article (Second language Research, 2019) · cited 27× · AI/ML

**Wikidata**: [openalex:W2918212484](https://www.wikidata.org/wiki/openalex:W2918212484)  
**Source**: https://4ort.xyz/entity/on-the-role-of-orthography-in-l2-vowel-production-the-case-of-polish-learners-of-german