Reference
Alexander Lukeneder (2008): Excursion to Lower Cretaceous Sites. Stop 1: Sparbach (Schrambach Formation, Valaniginian to Barremian): An equivalent of the Early Cretaceous Karsteniceras Level within the Vienna Woods (Sparbach section, Lunz Nappe, Northern Calcareous Alps, Lower Austria) – Berichte der Geologischen Bundesanstalt – 74: 112 - 125.