@misc{Spangenberg_Johann_(1484–1550)_Computus, author={Spangenberg Johann (1484–1550)}, howpublished={online}, publisher={Wietor Hieronim}, language={lat}, type={starodruki}, title={Computus ecclesiasticus in pueriles questiones redactus [...] figuris illustratus [...] Nunc primum auctus et recognitus}, keywords={kalendarz liturgiczny 16w., astronomia 16w.}, }