@misc{Langer_Johann_(_–1505)_De,
 author={Langer, Johann ( –1505)},
 address={Mainz},
 howpublished={online},
 publisher={Schöffer, Peter (ca 1425-ca 1503)},
 language={lat},
 type={tekst},
 title={De censibus sub titulo reemptionis.},
 keywords={15 w., inkunabuły},
}