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Schmid, S.; Rück, P.; Schreurs, Guido (1990). The significance of the Schams Nappes for the paleotectonic and orogenic evolution of the Penninic Zone along the NFP 20 East traverse (Grisons, Eastern Switzerland). Mémoires de la Société Géologique de France, 156, pp. 263-287. Société Géologique de France
