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Aboussalam & Becker |
2001 |
Prospects for an upper Givetian substage.
Mitteilungen des Museum für Naturkunde Berlin, Geowissinschaftliche Reihe, 4: 83-99, 3 text-figs., 3 pls., 2 tabls.
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Becker, Aboussalam & Bockwinkel |
2004 |
The Givetian and Frasnian at Oued Mzerreb (Tata region, eastern Dra Valley). - [T.R. Becker, S.Z.Aboussalam, J.Bockwinkel, V. Ebbighausen, A. El Hassani & H.Nübel]
Devonian Neritic-Pelagic correlation and events in the Dra Valley (Western Anti-Atlas, Morocco, A. El Hassani, ed., Docum.Inst.Scient., 19: 29-43, 1 pl., 4 fig., 2 tab.,Rabat.
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