Reference
Rainer Brandner, Micha Horacek, Lorenz Keim, Robert Scholger (2009): The Pufels/Bulla road section: deciphering environmental changes across the permian-Triassic boundary to the Olenekian by integrated litho-, magneto- and isotope stratigraphy. A Field trip guide. – Geo.Alp – 006: 116 - 132.