# A novel grey model based on traditional Richards model and its application in COVID-19

> Research article (Chaos Solitons & Fractals, 2020) · cited 50× · AI/ML

**Wikidata**: [openalex:W3103588972](https://www.wikidata.org/wiki/openalex:W3103588972)  
**Source**: https://4ort.xyz/entity/a-novel-grey-model-based-on-traditional-richards-model-and-its-application-in-covid-19