, 2020 — Cenozoic Deformation and Geomorphologic Evolution of the Sperrgebiet (Southern Namibia). Communications of the Geological Society of Namibia vol. 18, , dir. {Geological Survey} p. 1-19
, January 2020 — Orrorin Tugenensis et Les Origines de l’homme : Une Synthèse. Bulletin de l'Académie Nationale de Médecine vol. 204, n° 3, dir. {Elsevier Masson} p. 258-267
ISSN
00014079
, 2020 — On the Age of the Artefact-Bearing Sediments Partly Infilling the Broad Valley North of Kerbehuk, Sperrgebiet, Namibia. vol. 22, , dir. {Geological Survey} p. 81-90