# Green supplier selection with undesirable outputs DEA under Pythagorean fuzzy environment

> Research article (Journal of Intelligent & Fuzzy Systems, 2019) · cited 17× · AI/ML

**Wikidata**: [openalex:W2964780381](https://www.wikidata.org/wiki/openalex:W2964780381)  
**Source**: https://4ort.xyz/entity/green-supplier-selection-with-undesirable-outputs-dea-under-pythagorean-fuzzy-environment