# Pieter Arie Albert Klok

> Ph.D. Universiteit van Amsterdam 1963

**Wikidata**: [Q102376544](https://www.wikidata.org/wiki/Q102376544)  
**Source**: https://4ort.xyz/entity/pieter-arie-albert-klok


## References

1. Mathematics Genealogy Project
2. Dutch National Thesaurus for Author Names