Stock Photo - Germany, Mannheim, 15.11.2011 Roland Koch (left), CEO and CFO Joachim Mueller (right) of the Bilfinger Berger SE, during the autumn press conference. - MANNHEIM, GERMANY, 15/11/2011

Stock Photo: Germany, Mannheim, 15.11.2011 Roland Koch (left), CEO and CFO Joachim Mueller (right) of the Bilfinger Berger SE, during the autumn press conference.

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