# Interval Type-2 Fuzzy Sliding Mode Controller Based on Nonlinear Observer for a 3-DOF Helicopter with Uncertainties

> Research article (International Journal of Fuzzy Systems, 2016) · cited 22× · AI/ML

**Wikidata**: [openalex:W2500065849](https://www.wikidata.org/wiki/openalex:W2500065849)  
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