# APPLICATION OF HE’S FREQUENCY FORMULA TO NONLINEAR OSCILLATORS WITH GENERALIZED INITIAL CONDITIONS

> Research article (Facta Universitatis Series Mechanical Engineering, 2023) · cited 26× · AI/ML

**Wikidata**: [openalex:W4390757323](https://www.wikidata.org/wiki/openalex:W4390757323)  
**Source**: https://4ort.xyz/entity/application-of-hes-frequency-formula-to-nonlinear-oscillators-with-generalized-initial-conditions