# U-4

> 1935 Type IIA submarine

**Wikidata**: [Q560402](https://www.wikidata.org/wiki/Q560402)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/German_submarine_U-4_(1935))  
**Source**: https://4ort.xyz/entity/u-4


## References

1. Hitler's U-Boat War:  The Hunters, 1939-1942
2. Freebase Data Dumps. 2013
3. [Source](https://uboat.net/boats/u4.htm)
4. [Source](http://www.ubootarchiv.de/ubootwiki/index.php/Wilhelm_Dommes)
5. Die deutschen U-Boot-Kommandanten (1 ed.)