@misc{Schöffer_Peter_(ok._1425-ok._1503)_druk._Canon,
 author={Schöffer, Peter (ok. 1425-ok. 1503) druk.},
 howpublished={online},
 publisher={[Petrus Schöffer]},
 language={lat},
 type={inkunabuł},
 title={Canon missae},
}