@misc{Jan_z_Głogowa_(1445-1507)_Introductorium,
 author={Jan z Głogowa (1445-1507)},
 address={Kraków},
 howpublished={online},
 publisher={Ungler, Florian ( -1536). Druk.},
 language={lat},
 title={Introductorium astronomie in ephemerides},
 type={stary druk},
}