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Gisler, Christian; Hochuli, Peter; Ramseyer, Karl; Bläsi, Hansruedi; Schlunegger, Fritz (2007). Sedimentological and palynological constraints on the basal Triassic sequence in Central Switzerland. Swiss journal of geosciences, 100(2), pp. 263-272. Basel: Birkhäuser-Verlag; www.birkhäuser.ch 10.1007/s00015-007-1225-1
