@misc{Joannes_de_Sacrobosco_(c._1195_–_1256)_Joannis,
 author={Joannes de Sacrobosco (c. 1195 – 1256)},
 howpublished={online},
 publisher={Ungler Florian},
 language={lat},
 type={starodruk},
 title={Joannis de Sacrobosco astronomi celeberrimi sphericu[m] opusculum, cum lucida et familiari expsitione [!] per Matthaeum Shamotulien[sem], artium magistrum, in studio almae universitatis Cracovien collecta},
 keywords={astronomia 16w., stemmat łaciński 16w.},
}