# The effect of end-markers on counter machines and commutativity

> Research article (Theoretical Computer Science, 2016) · cited 16× · AI/ML

**Wikidata**: [openalex:W2288306272](https://www.wikidata.org/wiki/openalex:W2288306272)  
**Source**: https://4ort.xyz/entity/the-effect-of-end-markers-on-counter-machines-and-commutativity