# Friderich Martens

> German explorer

**Wikidata**: [Q375686](https://www.wikidata.org/wiki/Q375686)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Friderich_Martens)  
**Source**: https://4ort.xyz/entity/friderich-martens


## References

1. BnF authorities
2. CERL Thesaurus
3. Virtual International Authority File
4. IdRef
5. Integrated Authority File
6. Czech National Authority Database
7. International Standard Name Identifier
8. datos.bne.es
9. Trove
10. Faceted Application of Subject Terminology
11. LIBRIS
12. Library of Congress Authorities
13. Open Library
14. Biodiversity Heritage Library
15. Alvin
16. Freebase Data Dumps. 2013