# Modeling third waves of Covid-19 spread with piecewise differential and integral operators: Turkey, Spain and Czechia

> Research article (Results in Physics, 2021) · cited 52× · AI/ML

**Wikidata**: [openalex:W3196282246](https://www.wikidata.org/wiki/openalex:W3196282246)  
**Source**: https://4ort.xyz/entity/modeling-third-waves-of-covid-19-spread-with-piecewise-differential-and-integral-operators-turkey-spain-and-czechia