# Euler–Poisson–Darboux equation
**Wikidata**: [Q3730830](https://www.wikidata.org/wiki/Q3730830)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Euler–Poisson–Darboux_equation)  
**Source**: https://4ort.xyz/entity/euler-poisson-darboux-equation