# quadtree

> tree data structure in which each internal node has exactly four children

**Wikidata**: [Q934791](https://www.wikidata.org/wiki/Q934791)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Quadtree)  
**Source**: https://4ort.xyz/entity/quadtree


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)