# Growth rates of permutation grid classes, tours on graphs, and the spectral radius

> Research article (Open Research Online (The Open University), 2015) · cited 15× · AI/ML

**Wikidata**: [openalex:W3102442452](https://www.wikidata.org/wiki/openalex:W3102442452)  
**Source**: https://4ort.xyz/entity/growth-rates-of-permutation-grid-classes-tours-on-graphs-and-the-spectral-radius