# Necessary and sufficient condition for oscillation of nonlinear neutral first-order differential equations with several delays

> Research article (Journal of Fixed Point Theory and Applications, 2018) · cited 30× · AI/ML

**Wikidata**: [openalex:W2790191400](https://www.wikidata.org/wiki/openalex:W2790191400)  
**Source**: https://4ort.xyz/entity/necessary-and-sufficient-condition-for-oscillation-of-nonlinear-neutral-first-order-differential-equations-with-several-