@misc{Ioannes_de_Verdena_Sermones,
 author={Ioannes de Verdena},
 address={Speyer},
 howpublished={online},
 publisher={[Drach Petr.]},
 language={lat},
 type={inkunabuł},
 title={Sermones Dormi secure de tempore et de sanctis. P. I-II},
 keywords={Incunabula -- Poland -- Bydgoszcz -- Catalogs, Early printed books -- 15th century},
}