# four-stroke engine

> internal combustion engine type

**Wikidata**: [Q191801](https://www.wikidata.org/wiki/Q191801)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Four-stroke_engine)  
**Source**: https://4ort.xyz/entity/four-stroke-engine


## References

1. Freebase Data Dumps. 2013
2. YSO-Wikidata mapping project
3. KBpedia
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)