# Efficiency of mono-stable piezoelectric Duffing energy harvester in the secondary resonances by averaging method. Part 1: Sub-harmonic resonance

> Research article (International Journal of Non-Linear Mechanics, 2020) · cited 19× · AI/ML

**Wikidata**: [openalex:W3038080527](https://www.wikidata.org/wiki/openalex:W3038080527)  
**Source**: https://4ort.xyz/entity/efficiency-of-mono-stable-piezoelectric-duffing-energy-harvester-in-the-secondary-resonances-by-averaging-method-part-1-