Ziegler Reinhard, Shrews (Soricidae, Mammalia) from Middle Miocene Karstic fissure fill sites of Petersbuch near Eichstatt, Southern Franconian Alb (Bavaria), Palaontologische Zeitschrift Palaontologische Zeitschrift (Print);Journal of Palaontologische Gesellschaft Scientific contributions to palaeontology, 77(2), 2003, pp. 303-322