1. Chronologie absolue du Precambrien de L'Ahaggar occidental;Allègre;C.R. Acad. Sci. Paris,1972
2. Origin of sedimentary rocks;Blatt,1972
3. Origin of matrix in Ordovician graywackes, Berwyn Hills, North Wales;Brenchley;J. Sediment. Petrol.,1969
4. La chaine pharusienne dans le Nord-Ouest de l'Ahaggar (Sahara central, Algèrie);Caby,1970
5. Volcanic graywackes from the Upper Devonian Baldwin formation, Tamworth-Barraba district, New South Wales;Chappell;J. Geol. Soc. Aust.,1968