# How much vocabulary is needed to use English? Replication of van Zeeland & Schmitt (2012), Nation (2006) and Cobb (2007)

> Research article (Language Teaching, 2015) · cited 130× · AI/ML

**Wikidata**: [openalex:W2140785772](https://www.wikidata.org/wiki/openalex:W2140785772)  
**Source**: https://4ort.xyz/entity/how-much-vocabulary-is-needed-to-use-english-replication-of-van-zeeland-amp-schmitt-2012-nation-2006-and-cobb-2007