# Bernd-Joachim Ertelt

> Polish pedagogue

**Wikidata**: [Q105453341](https://www.wikidata.org/wiki/Q105453341)  
**Source**: https://4ort.xyz/entity/bernd-joachim-ertelt


## References

1. IdRef
2. [Polish Science](https://nauka-polska.pl/#/profile/scientist?id=112973)
3. CiNii Research
4. Virtual International Authority File
5. [Source](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810681516405606)