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1984
“...From Hunters to Farmers. The Causes and Consequences of Food Production in Afrika...”
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2002
“...Africa Praehistorica - Monographie zur Archäologie und Umwelt Afrikas...”
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Discovered with satellite eyes
“...Africa Praehistorica - Monographie zur Archäologie und Umwelt Afrikas...”
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Plants as witnesses to the humid past
“...Africa Praehistorica - Monographie zur Archäologie und Umwelt Afrikas...”
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Archaeology of the Jebel Quenat. Gilf Kebir region, eastern Sahara
“...Africa Praehistorica - Monographie zur Archäologie und Umwelt Afrikas...”
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