@misc{Grzegorz_I_(papież_;_ca_540-604)_Opera,
 author={Grzegorz I (papież ; ca 540-604)},
 howpublished={online},
 publisher={Froben Hieronymus et Episcopius Nicolaus},
 language={lat},
 type={stary druk},
 title={Opera D. Gregorii Papae, Hvivs Nominis Primi, Cognomento Magni, Omnia Qvae Extant [...]},
 keywords={Bonifacio, Giovanni Bernardino (1517-1597)},
}