OGC-API-3D-GeoVolume.md

+
+## Webpage
+
+* Steinbeis website: http://steinbeis-3dps.eu/
+* Official OGC API - 3D GeoVolumes: https://ogcapi.ogc.org/geovolumes/
+
+## Example GeoVolumes Server
+
+* Steinbeis GeoVolumes: https://steinbeis-3dps.eu/3DGeoVolumes/
+* RT-GIS GeoVolumes: https://3dps.gis.lrg.tum.de/geovolumes/
+
+## Open Source GeoVolumes Server
+
+* HFT Stuttgart GeoVolumes Server https://transfer.hft-stuttgart.de/gitlab/ogc/3dgeovolumesapi
+* List of GeoVolumes Implementations on OGC Github https://github.com/opengeospatial/ogcapi-3d-geovolumes/tree/main/implementations
+
+## Engineering Reports
+
+* 3D GeoVolumes ER: https://docs.ogc.org/per/20-030.html
+* 3D Data Container and Tiles API Pilot http://docs.ogc.org/per/20-031.html
+* 3D Data Container Engineering Report http://docs.ogc.org/per/20-029.html
+* ISG Sprint Yr 2: http://docs.ogc.org/per/20-058.html
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