# unit of measurement

> real scalar quantity, defined and adopted by convention, with which any other quantity of the same kind can be compared to express the ratio of the two quantities as a number (VIM)

**Wikidata**: [Q47574](https://www.wikidata.org/wiki/Q47574)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Unit_of_measurement)  
**Source**: https://4ort.xyz/entity/unit-of-measurement


## References

1. Integrated Authority File
2. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=17350)
3. BnF authorities
4. Nuovo soggettario
5. Freebase Data Dumps. 2013
6. YSO-Wikidata mapping project
7. BabelNet
8. National Library of Israel
9. KBpedia
10. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)