@misc{_Exemplum,
 howpublished={online},
 publisher={[s. n.]},
 language={lat},
 language={ger},
 language={pol},
 type={stary druk},
 title={Exemplum literarum ex Castris ad Camenciam, de data 26. Septemb. Ad Illustr. Cancellarium Regni Poloniæ supremum.},
}