# Zygalski sheets

> Cryptologic technique used in World War II

**Wikidata**: [Q2185271](https://www.wikidata.org/wiki/Q2185271)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Zygalski_sheets)  
**Source**: https://4ort.xyz/entity/zygalski-sheets


## References

1. Freebase Data Dumps. 2013