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Karl Wittenberg was a German swimmer who specialized in the 200 m breaststroke. In this event he won the national title and a silver medal at the European Championships in 1931.〔 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Karl Wittenberg」の詳細全文を読む スポンサード リンク
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