@misc{Chwałkowski_Mikołaj_(_-post_1700)_Effata,
 author={Chwałkowski, Mikołaj ( -post 1700)},
 howpublished={online},
 publisher={Drukarnia Pijarów (Warszawa)},
 language={lat},
 type={starodruk},
 title={Effata Regum Poloniæ vsque ad Ioannem Casimirum},
}