@misc{Kühne_Andreas_The,
 author={Kühne, Andreas},
 copyright={Metze, Gudula},
 copyright={Kühne, Andreas},
 address={Warszawa},
 howpublished={online},
 publisher={PWN},
 language={eng},
 type={artykuł},
 title={The early Copernican biographies and portraits},
}