1. Chronologie absolue du Précambrien de l'Ahaggar occidental;Allègre;C.R. Acad. Sci. Ser. D,1972
2. Geological comparison of North-Eastern South America and Western Africa;Almeida,1967
3. Evolution polycyclique des Gneiss précambriens de l'Aleksod (Hoggar central, Sahara algérien);Bertrand;Thèse d'Etat, Univ. Montpellier C.N.R.S. (C.R.Z.A.), Sér. Géol.,1974
4. Geodynamic evolution of the Pan-African orogenic belt: a new interpretation of the Hoggar shield (Algerian Sahara);Bertrand;Geol. Rundsch.,1978
5. The Late Pan-African ensialic linear fold belt of eastern Hoggar (Algeria): geology, structural development, U/Pb geochronology, tectonic implications for the Hoggar shield;Bertrand;Precambrian Res.,1978