# A chain observer for nonlinear long constant delay systems: A matrix inequality approach

> Research article (Automatica, 2015) · cited 28× · AI/ML

**Wikidata**: [openalex:W2219131013](https://www.wikidata.org/wiki/openalex:W2219131013)  
**Source**: https://4ort.xyz/entity/a-chain-observer-for-nonlinear-long-constant-delay-systems-a-matrix-inequality-approach