Author Lothar Klingel – Published Panico Alpinverlag (2010) – ISBN 978-3-926807-97-7
This is a comprehensive German language guide to the Donautal and Zollernalb areas. The topos are well drawn. The Donautal area is subject to fairly strict environmental control - bird breeding etc, the guide book give clear and detailed information on this; rather usefully for those that do not read German the topos indicate which routes are subject to those controls. Additionally this info is displayed on boards as you approach each crag.