@misc{Jan_Gryf_z_Latoszyna_Litterae,
 author={Jan Gryf z Latoszyna},
 howpublished={online},
 publisher={Koberger, Anton},
 language={lat},
 type={inkunabuły},
 title={Litterae indulgentiarum pro defensione catholicae fidei contra Turcos concessarum},
}