# Necessary and sufficient conditions for ODE observer design of descriptor systems

> Research article (Systems & Control Letters, 2021) · cited 21× · AI/ML

**Wikidata**: [openalex:W3155813361](https://www.wikidata.org/wiki/openalex:W3155813361)  
**Source**: https://4ort.xyz/entity/necessary-and-sufficient-conditions-for-ode-observer-design-of-descriptor-systems