# Karol Kowalczyk

> Polish geographer, specialist in road and railway infrastructure, passenger rail transport in agglomeration areas in Poland

**Wikidata**: [Q132753371](https://www.wikidata.org/wiki/Q132753371)  
**Source**: https://4ort.xyz/entity/karol-kowalczyk


## References

1. Czech National Authority Database
2. German National Library
3. Virtual International Authority File
4. NUKAT
5. Library of Congress Name Authority File
6. ORCID iD