@misc{Caffman_Ioannes_Ephemeris,
 author={Caffman, Ioannes},
 address={[Kraków?]},
 howpublished={online},
 publisher={[Ungler, Florian ( -1536). Druk.]},
 language={lat},
 title={Ephemeris anno Christi 1536 Stoeflerini},
 type={stary druk},
}