Data lineage

Hi everybody,

Does anybody know what is the source of the building polygon data of OSM in the Netherlands? It seems that it is quite similar with TOP10NL.

Is it this one? http://wiki.openstreetmap.org/wiki/3dShapes

Found via
http://wiki.openstreetmap.org/wiki/Import/Catalogue

Hi !i!,

Thanks for your reply. I got some clues from these sites.