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Oliver Hermes, CEO of WILO, Dortmund, © VENNENBERND.COM 2011
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Oliver Hermes, CEO of WILO, Dortmund, © VENNENBERND.COM 2011
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Andrew Jennings, CEO of Karstadt, Essen, © VENNENBERND.COM 2011
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Dietrich Voigtländer, CEO of WestLB, Düsseldorf, © VENNENBERND.COM 2011
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Eckhard Cordes, CEO of METRO GROUP, Düsseldorf, © VENNENBERND.COM 2010
