# A 4D hyperchaotic Lorenz-type system: zero-Hopf bifurcation, ultimate bound estimation, and its variable-order fractional network

> Research article (The European Physical Journal Special Topics, 2022) · cited 10× · AI/ML

**Wikidata**: [openalex:W4207070510](https://www.wikidata.org/wiki/openalex:W4207070510)  
**Source**: https://4ort.xyz/entity/a-4d-hyperchaotic-lorenz-type-system-zero-hopf-bifurcation-ultimate-bound-estimation-and-its-variable-order-fractional-n