Förster, H.-J. 6.2 Geothermal Energy Systems, 6.0 Geotechnologies, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Förster, H.-J. (2018): Accessory Minerals in Felsic Igneous Rocks - Part 1: Composition of monazite-(Ce), xenotime-(Y) and zircon from the multi-stage, peraluminous two-mica granite massif of Bergen (Erzgebirge−Vogtland metallogenic province, Germany).https://doi.org/10.5880/GFZ.6.2.2018.001