Histoire du peuplement de ce bassin de montagne et tendances de l'évolution actuelle de l'habitat rural. Importance des recherches entreprises par le projet allemand sur le Mexique et perspectives. (HSC).
. Deutschen Geographentag in Gottingen, 1979.. (The western escarpment margin of the Murzuk Basin, central Sahara as an example for the structural pattern of the arid relief)
Two sections of the Messak escarpment at the western margin of the Murzuk basin are presented in geomorphological maps and aerial photo mosaics and analyzed as to their pattern of landforms and geomorphic history. Relict forms of non-arid climates
Formenmuster des jungsedimentären Amazonasbeckens. in Gefügemuster der Erdoberfläche. Die genetische Analyse von Reliefkomplexen und Siedlungsräumen. Festschrift zum 42. Deutschen Geographentag in Gottingen, 1979.. (Landform pattern of the Neogene