# Second-order counterexample to the discrete-time Kalman conjecture

> Research article (2015 European Control Conference (ECC), 2015) · cited 32× · AI/ML

**Wikidata**: [openalex:W2152522362](https://www.wikidata.org/wiki/openalex:W2152522362)  
**Source**: https://4ort.xyz/entity/second-order-counterexample-to-the-discrete-time-kalman-conjecture