@misc{Leovitius_Cyprian_De,
 author={Leovitius, Cyprian},
 howpublished={online},
 publisher={Lavgingae ad Danubium},
 language={lat},
 title={De coniunctionibus magnis insignioribus superiorum Planetarum, Solis Defectionibus, et Cometis, in quarta Monarchia...},
 type={stary druk},
 keywords={astronomia, rozprawa naukowa, Leowitz, Cyprian (1514-1574), efemerydy},
}