# Ivan O. Šichovskij
**Wikidata**: [Q55906051](https://www.wikidata.org/wiki/Q55906051)  
**Source**: https://4ort.xyz/entity/ivan-o-ichovskij


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Catalog of the German National Library
4. LIBRIS
5. [Source](http://thesaurus.cerl.org/record/cnp00302488)
6. [LIBRIS. 2013](https://libris.kb.se/katalogisering/b8nrzw1v4pm31k8)