@misc{Orbelis_Nicolaus_de_Cursus,
 author={Orbelis, Nicolaus de},
 address={Bazylea},
 howpublished={online},
 publisher={Furter Mich.},
 language={lat},
 type={inkunabuł},
 title={Cursus librorum philosaphiae naturalis},
 keywords={Incunabula -- Poland -- Bydgoszcz -- Catalogs, Early printed books -- 15th century},
}