Trappe, Martin: Classification of karst deposits from the Franconian Alb (Southern Germany). In: White, William B. (Hrsg.): Proceedings : 15th International Congress of Speleology, Kerrville, Texas, July 19-26, 2009. Vol. 3: Contributed papers. -
Kerrville : International Union of Speleology, 2009. - S. 1707-1712
ISBN 978-1-879961-35-7
(Begutachteter Beitrag / peer-reviewed paper)