# C. T. van Valkenburg
**Wikidata**: [Q9190956](https://www.wikidata.org/wiki/Q9190956)  
**Source**: https://4ort.xyz/entity/c-t-van-valkenburg


## References

1. BnF authorities
2. [Algemeen Handelsblad. 1962](https://resolver.kb.nl/resolve?urn=KBNRC01:000036258:mpeg21:p008)
3. Virtual International Authority File
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. Integrated Authority File
6. Digital Library for Dutch Literature