Tübingen is one of the four Administrative Districts (Regierungsbezirke) of Baden-Württemberg, Germany, located in the south-east of the country. It covers most of the German shore of Lake Constance (Bodensee), and also the beginning of the Danube River valley. It's sub-divided into the three regions (Regionalverband) Neckar-Alb, Donau-Iller and Bodensee-Oberschwaben. Donau-Iller also includes three districts and one city of Bavaria.
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