12-019http://www.opengis.net/spec/citygml/2.012-0192012-04-042012-03-092011-05-24 Autodesk, Inc. (primary submitter) Bentley Systems, Inc. (primary submitter) Technical University Berlin (submitter of technology) Ordnance Survey, UK University of Bonn, Germany Hasso-Plattner-Institute for IT Systems Engineering, University of Potsdam Institute for Applied Computer Science, Karlsruhe Institute of Technology Gerhard Gröger Thomas H. Kolbe Claus Nagel Karl-Heinz Häfele committee Open Geospatial Consortium technical OGC Open Geospatial Consortium OGC2.0.0enapproved2012 Open Geospatial Consortium OGCstandardencodingogc