# A novel volumetric efficiency model for spark ignition engines equipped with variable valve timing and variable valve lift Part 1: model development

> Research article (Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering, 2016) · cited 11× · AI/ML

**Wikidata**: [openalex:W2411698947](https://www.wikidata.org/wiki/openalex:W2411698947)  
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