# Theodorus Lubbers
**Wikidata**: [Q21546738](https://www.wikidata.org/wiki/Q21546738)  
**Source**: https://4ort.xyz/entity/theodorus-lubbers


## References

1. Catalogus Professorum Academiae Groninganae
2. Integrated Authority File
3. [Catalogus Professorum Academiae Groninganae](http://hoogleraren.ub.rug.nl/?page=showPerson&type=hoogleraar&hoogleraar_id=1138)
4. CERL Thesaurus
5. Digital Library for Dutch Literature
6. Virtual International Authority File