@misc{Vincentius_Bellovacensis_(1190?-1264)_Speculum,
 author={Vincentius Bellovacensis (1190?-1264)},
 howpublished={online},
 publisher={[R-typographus = Adolphus Rusch]},
 language={lat},
 type={inkunabuł},
 title={Speculum doctrinale},
}