	Authors	Year	Title
	DeBaets, Klug & Korn	2013	Emsian Ammonoidea and the age of the Hunsrück Slate (Rhenish Mountains, Western Germany). De Baets, K., Klug, C., Korn., D., Bartels, C., Poschmann, M. Palaeontographica, Abteilung A, 299:1-113