Earth Sciences Excursions I:
Glarus Alps
Earth Sciences Excursions I:
Gotthard
Geological Field Course II:
Central Alps, Gemmipass
Non Alpine Field Course IV:
Anti-Atlas, Taznakht, Morocco
Swiss Alpine Archaeology Summer School SiSA 2018
Swiss Alps, Alp Flix
Geological city excursion Zurich
focusTerra
Stylolithes in “black” limestone 
Natural or artificial stone? 
White granite – black gabbro