Gottesmann, B. External Organizations;
Wirth, Richard 3.3 Chemistry and Physics of Earth Materials, 3.0 Geodynamics and Geomaterials, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
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Gottesmann, B., Wirth, R. (1995): On the nature of dark pigment in accessory apatite from granitic rocks, EUG 8 (Strasbourg).