| Found in | Machens, Eberhard. Platinum, gold and diamonds, 2009: t.p. (Eberhard W. Machens) cover p. 4 flap (b. 1929, worked in Africa for 10 yrs., prospecting for various ores, particularly for gold. Returned to his native Germany he submitted a postdoctoral thesis on the deposits of the African basement complex, and took up a professorship for Geology of non-European countries at the Univ. of Mainz. Later worked at OECD in Paris, Fed. Ministry of Economic Affairs in Bonn, as representative for raw materials issues in international economic relations, then became chair in raw materials economics at the Univ. of Cottbus)
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