@misc{Spangenberg_Johann_Compvtvs,
 author={Spangenberg, Johann},
 howpublished={online},
 publisher={Siebeneicher, Mateusz},
 language={lat},
 type={starodruki},
 title={Compvtvs ecclesiasticvs in pveriles quaestiones redactvs [...] figuris illustratus [...] Avthore Ioanne Spangenbergio [...] Nunc primum auctus et recognitus},
 keywords={astronomia 16w., pomiary czasu, kalendarze 16w., chronologia 16w., podręczniki 16w.},
}