# Challenges

> Academic journal published by MDPI AG , covering the subjects: Technology | Science: Science (General)

**Wikidata**: [Q50815379](https://www.wikidata.org/wiki/Q50815379)  
**Source**: https://4ort.xyz/entity/challenges-q50815379


## References

1. Directory of Open Access Journals
2. [Directory of Open Access Journals](https://doaj.org/toc/2078-1547)
3. [Source](https://doaj.org/toc/2078-1547)
4. ISSN Portal
5. National Collective Archive of Periodicals
6. OpenAlex