	Authors	Year	Title
	Belka, Klug & Kaufmann	1999	Devonian conodont and ammonoid succession of the eastern Tafilalt (Ouidane Chebbi section), Anti-Atlas, Morocco. [Z.Belka, C.Klug, B.Kaufmann, D.Korn, S.Döring, R.Feist & J.Wendt]. Acta Geologica Polonica, 49: 1-23, 10 figs., 6 tabls., 5 pls., Warszawa.
	Korn, Kaufmann & Wendt	1999	Carboniferous Ammonoids from Anarak (Central Iran). Abhandlungen der Geologischen Bundesanstalt, 54: 337-344, 2 figs., 1 pl., Wien.
	Korn & Kaufmann	2008	A high-resolution relative time scale for the Viséan Stage (Carboniferous) of the Kulm Basin (Rhenish Mountains, Germany). Geological Journal (2008); 000-000, 8 fig., on-line version.