Has participated in:
-
Radiolarian cherts and associated siliceous rocks of the Rhenish Massif and Harz Mountains, lower Carboniferous (Mississippian), Germany
-
Palaeocene-eocene siliceous rocks of West Siberia : types, mineralogical and geochemical variability and resource potential
-
Die Kieselgesteine des Unter-Karbons im Rhenoherzynikum : Sedimentologie, Petrographie, Geochemie und Paläozeanographie
-
Geo-risk management - a German-Latinamerican approach : field workshop organized by the Geo-Network of Latinamerican-German Alumni (GOAL), Heidelberg, 2 - 7 April 2011