Reference
Alexander Lukeneder, Oleg Mandic (2008): Excursion to Lower Cretaceous Sites. Stop 2: Sittendorf (Schrambach and Tannheim Formation, Aptian): The Penninic Ocean Subduction: New Data from Planktonic Foraminifera – Berichte der Geologischen Bundesanstalt – 74: 138 - 151.