# PD–PID controller for delayed systems with two unstable poles: a frequency domain approach

> Research article (International Journal of Control, 2017) · cited 27× · AI/ML

**Wikidata**: [openalex:W2759779818](https://www.wikidata.org/wiki/openalex:W2759779818)  
**Source**: https://4ort.xyz/entity/pdpid-controller-for-delayed-systems-with-two-unstable-poles-a-frequency-domain-approach