# Oscar Theodore Barck
**Wikidata**: [Q105738716](https://www.wikidata.org/wiki/Q105738716)  
**Source**: https://4ort.xyz/entity/oscar-theodore-barck


## References

1. Czech National Authority Database
2. Catalog of the German National Library
3. NUKAT
4. [Source](http://ci.nii.ac.jp/author/DA04127375?l=en)
5. CiNii Research
6. [Source](https://plus.sr.cobiss.net/opac7/conor/29663847)
7. MAK
8. CONOR.SI
9. [Source](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810684456205606)
10. Virtual International Authority File
11. Catalogo of the National Library of India