# Erjen Lefeber
**Wikidata**: [Q102441539](https://www.wikidata.org/wiki/Q102441539)  
**Source**: https://4ort.xyz/entity/erjen-lefeber


## References

1. IdRef
2. [Source](https://research.utwente.nl/en/publications/tracking-control-of-nonlinear-mechanical-systems)
3. Mathematics Genealogy Project
4. Dutch National Thesaurus for Author Names