# Hasse invariant of a quadratic form
**Wikidata**: [Q5679984](https://www.wikidata.org/wiki/Q5679984)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hasse_invariant_of_a_quadratic_form)  
**Source**: https://4ort.xyz/entity/hasse-invariant-of-a-quadratic-form