@misc{_Acta,
 copyright={Archiwum Państwowe w Poznaniu},
 howpublished={online},
 language={lat},
 language={pol},
 type={akta},
 type={archiwalia},
 title={Acta advocatialia civitatis Calissiensis... , Acta proconsularia civitatis Calissiensis...},
 keywords={Kalisz},
}