# Novel preconditioners based on quasi–Newton updates for nonlinear conjugate gradient methods

> Research article (Optimization Letters, 2016) · cited 20× · AI/ML

**Wikidata**: [openalex:W2472474713](https://www.wikidata.org/wiki/openalex:W2472474713)  
**Source**: https://4ort.xyz/entity/novel-preconditioners-based-on-quasinewton-updates-for-nonlinear-conjugate-gradient-methods