# Direct Georeferencing for Portable Mapping Systems: In the Air and on the Ground

> Research article (Journal of Surveying Engineering, 2017) · cited 17× · AI/ML

**Wikidata**: [openalex:W2611862984](https://www.wikidata.org/wiki/openalex:W2611862984)  
**Source**: https://4ort.xyz/entity/direct-georeferencing-for-portable-mapping-systems-in-the-air-and-on-the-ground