# Filtering for systems subject to unknown inputs without a priori initial information

> Research article (Automatica, 2020) · cited 23× · AI/ML

**Wikidata**: [openalex:W3041156204](https://www.wikidata.org/wiki/openalex:W3041156204)  
**Source**: https://4ort.xyz/entity/filtering-for-systems-subject-to-unknown-inputs-without-a-priori-initial-information