@misc{_Acten,
 address={Danzig},
 howpublished={online},
 publisher={A. W. Kafemann},
 language={ger},
 type={książka},
 title={Acten der Ständetage Preussens, Königlichen Antheils (Westpreussen). Bd. 1, 1466-1471},
 keywords={Prusy Królewskie},
}