# Unknown input observer for linear time-delay systems

> Research article (Automatica, 2015) · cited 59× · AI/ML

**Wikidata**: [openalex:W1152423495](https://www.wikidata.org/wiki/openalex:W1152423495)  
**Source**: https://4ort.xyz/entity/unknown-input-observer-for-linear-time-delay-systems