@misc{Steffens_Heinrich_Breslau,
 author={Steffens, Heinrich},
 address={Leipzig (Lipsk)},
 howpublished={online},
 publisher={Xenien-Velag},
 language={ger},
 title={Breslau 1813},
 keywords={Wrocław, 19 w., Wrocław - historia, Wrocław (1813), wojny napoleońskie (1812-1815)},
}