Gilg, H. A. External Organizations;
Thomas, Rainer 3.3 Chemistry and Physics of Earth Materials, 3.0 Geodynamics and Geomaterials, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Gilg, H. A., Thomas, R. (2011): The inside story of topaz. - In: Staebler, G., Hansen, S., Liebetrau, S., Clifford, J. (Eds.), extraLapis No. 14: Topaz - Perfect Cleavage, 88-93.