# Direct and indirect methods in optimal control with state constraints and the climbing trajectory of an aircraft

> Research article (Optimal Control Applications and Methods, 2017) · cited 35× · AI/ML

**Wikidata**: [openalex:W2795748127](https://www.wikidata.org/wiki/openalex:W2795748127)  
**Source**: https://4ort.xyz/entity/direct-and-indirect-methods-in-optimal-control-with-state-constraints-and-the-climbing-trajectory-of-an-aircraft