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1by Weber, Michael E, Kuhn, Gerhard, Sprenk, Daniela, Rolf, Christian, Ohlwein, Christian, Ricken, WernerGet access
Published 2012
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2by Walter, Hans-Jürgen, Hegner, Ernst, Diekmann, Bernhard, Kuhn, Gerhard, Rutgers van der Loeff, Michiel MGet access
Published 2000
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Article in Journal/Newspaper