@misc{Piotr_z_Proboszczowic_(ok._1509-1565)_Iudicium,
 author={Piotr z Proboszczowic (ok. 1509-1565)},
 howpublished={online},
 publisher={in officina Haeredum Marci Scharffenberger},
 language={lat},
 title={Iudicium comoetis visi in horisonte Craccoviensi, diebus Marci, Anno 1556. Item et alterius in ultimis diebus Martii accensi [...] conscriptum [...]},
 type={starodruk},
 keywords={kometa, Kraków, astronomia},
}