# Hybrid Spatial Data Model for Indoor Space: Combined Topology and Grid

> Research article (ISPRS International Journal of Geo-Information, 2017) · cited 21× · AI/ML

**Wikidata**: [openalex:W2767590979](https://www.wikidata.org/wiki/openalex:W2767590979)  
**Source**: https://4ort.xyz/entity/hybrid-spatial-data-model-for-indoor-space-combined-topology-and-grid