International Association for Danube Research the Danube. In a more recent branch of IAD in Austria, the ÖK (Österreichisches Komitee), scientists with outstanding research related to the Danube Basin in Austria are awarded with the “Liepolt-Preis”. The major achievement in the first decade of IAD was the monograph “Limnologie der Donau” (Limnology of the Danube), edited by Liepolt and published by E. Schweizerbart’sche Verlagsbuchhandlung (Nägele & Obermiller) Stuttgart in 1967. In the same year, the Commission for Hydrology of the Romanian Academy published the monography “Limnology of the Romanian sector of the Danube”. In 1986, S. Godeanu and V. Popescu-Marinescu released the bibliography “Limnologie der
Nazi rule over the Danube River the river, stretching from Mohács in southern Hungary all the way to the Black Sea. Another suggested turning Belgrade into a fortress-city of the Reich ("Reichsfestung") and the center of a "Reichsgau" (administrative subdivision), to be named Prinz-Eugen. Neither of these ideas was officially endorsed by the wartime German government, however, and the historical record indicates that the Nazis had no clear conception as to what extent Germany should control the Danube or how this control was to be effected. Hitler's own preference, at least for the immediate future, was the retention of a number of satellite states (Hungary, Romania,