# Hyers–Ulam–Rassias stability
**Wikidata**: [Q5955764](https://www.wikidata.org/wiki/Q5955764)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hyers–Ulam–Rassias_stability)  
**Source**: https://4ort.xyz/entity/hyers-ulam-rassias-stability