@misc{Ursinus_Jan_(starszy_;_ca_1460-ca_1500)_Modus,
 author={Ursinus, Jan (starszy ; ca 1460-ca 1500)},
 address={Norymberga},
 howpublished={online},
 publisher={Hochfeder, Kaspar ( -ca 1517). Druk.},
 language={lat},
 type={inkunabuł},
 title={Modus epistolandi},
}