# Károly Bertalan

> Hungarian geologist, cave researcher (1914–1978)

**Wikidata**: [Q793756](https://www.wikidata.org/wiki/Q793756)  
**Source**: https://4ort.xyz/entity/k-roly-bertalan


## References

1. [Source](http://mek.oszk.hu/00300/00355/html/ABC00523/01688.htm)