@misc{Harum_Günther_Die,
 author={Harum, Günther},
 howpublished={online},
 publisher={Verlag Carl Gerber},
 language={ger},
 title={Die Wachau : Schönes Donauland in Wort und Bild},
 type={książka},
 keywords={Wachau, region Austrii},
}