# Mario Otto Helbing

> author (1944-)

**Wikidata**: [Q61476617](https://www.wikidata.org/wiki/Q61476617)  
**Source**: https://4ort.xyz/entity/mario-otto-helbing


## References

1. [Source](https://www.sbt.ti.ch/all/evento/8588.pdf)
2. Virtual International Authority File
3. CiNii Research
4. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=Helbing%20Mario%20Otto)