# SM U-23

> German Submarine

**Wikidata**: [Q877673](https://www.wikidata.org/wiki/Q877673)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/SM_U-23_(Germany))  
**Source**: https://4ort.xyz/entity/sm-u-23


## References

1. Freebase Data Dumps. 2013