@misc{Kopernik_Mikołaj_(1473–1543)_De,
 author={Kopernik, Mikołaj (1473–1543)},
 howpublished={online},
 publisher={Lufft Hans},
 language={lat},
 type={starodruk},
 title={De lateribus et angulis triangulorum, tum planorum rectilineorum, tum Sphaericorum, libellus eruditissimus et utilissimus, cum ad plerasque Ptolemaei demonstrationes intelligendas, tum vero ad alia multa, scriptus a Clarissimo et doctrissimo viro D. Nicolao Copernico Toronensi. Additus est Canon Semissium subtensarum rectarum linearum in Circulo},
 keywords={geometria, astronomia 16w.},
}