Philipp Willkomm

3DCityDB - a 3D geodatabase solution for the management, analysis, and visualization of semantic 3D city models based on CityGML

Andreas Donaubauer, Thomas H. Kolbe, Claus Nagel, 2018, Open Geospatial Data, Software and Standards.

Reference study of CityGML software support: The GeoBIM benchmark 2019—Part II pdf

Filip Biljecki, Antonio Ruiz, Francesca Noardo, 2020, Trans. GIS.