# Root class residuality of HNN-extensions with central cyclic associated subgroups

> Research article (Mathematical Notes, 2017) · cited 14× · AI/ML

**Wikidata**: [openalex:W2767120339](https://www.wikidata.org/wiki/openalex:W2767120339)  
**Source**: https://4ort.xyz/entity/root-class-residuality-of-hnn-extensions-with-central-cyclic-associated-subgroups