# A GRL-compliant iStar extension for collaborative cyber-physical systems

> Research article (Requirements Engineering, 2021) · cited 17× · AI/ML

**Wikidata**: [openalex:W3128521660](https://www.wikidata.org/wiki/openalex:W3128521660)  
**Source**: https://4ort.xyz/entity/a-grl-compliant-istar-extension-for-collaborative-cyber-physical-systems