# Towards greener petrochemical production: Two-stage network data envelopment analysis in a fully fuzzy environment in the presence of undesirable outputs

> Research article (Expert Systems with Applications, 2020) · cited 32× · AI/ML

**Wikidata**: [openalex:W3087436448](https://www.wikidata.org/wiki/openalex:W3087436448)  
**Source**: https://4ort.xyz/entity/towards-greener-petrochemical-production-two-stage-network-data-envelopment-analysis-in-a-fully-fuzzy-environment-in-the