@misc{Sacro_Bosco_Joannes_de_(ok._1195-1256)_Ioannis,
 author={Sacro Bosco, Joannes de (ok. 1195-1256) and Joannes de Sacrobosco (ok. 1195-1256) and Reinhold, Erasmus (1511-1553)},
 howpublished={online},
 publisher={Johann Krafft},
 language={lat},
 type={starodruk},
 title={Ioannis De Sacrobvsto Libellvs De Sphæra. Accessit Eivsdem Avtoris Compvtvs Ecclesiasticus, Et alia quædam in studiosorum gratiam edita. Cum Præfatione Philippi Melanthonis},
 title={Computus ecclesiasticus},
 title={Themata, quae continent methodicam tractationem de horizonte},
 keywords={astronomia, ciała niebieskie, fizyka, planety},
}