Specifications

CityGML 1.0.0 Standard document (OGC 08-007r1)	CityGML 1.0.0 OGC Standard web site
CityGML 0.4.0 BP (OGC 07-062)	CityGML 0.4.0 OGC Best Practices Document
CityGML 0.3.0 DP (OGC 06-057r1)	CityGML 0.3.0 OGC Discussion Paper