@misc{Witelo_(ok._1230-ok._1280)_Vitellionis,
 author={Witelo (ok. 1230-ok. 1280)},
 howpublished={online},
 publisher={Georg Tannstetter Collimitius},
 publisher={Petrus Apianus},
 language={lat},
 type={starodruk},
 title={Vitellionis Mathematici Peri' Optikēs, Id Est, De Natvra, Ratione, & projectione radiorum uisus, luminum, colorum atq[ue] formarum, quam uulgo Perspectiuam uocant: Libri X : Habes in hoc opere, Candide Lector, quum magnum numerum Geometricorum elementorum, [...]},
 keywords={geometria, matematyka, optyka},
}