@misc{Urdemann_Heinrich_(_-1485)_Dialogus,
 author={Urdemann, Heinrich ( -1485)},
 address={Lubeka},
 howpublished={online},
 language={lat},
 type={text},
 title={Dialogus inter Hugonem, Catonem et Oliverum super libertate ecclesiastica.},
 keywords={Incunable, incunabula},
}