@misc{Herka_Paweł_(_-1648)_Qvæstio,
 author={Herka, Paweł ( -1648)},
 howpublished={online},
 publisher={Drukarnia Franciszka Cezarego},
 language={lat},
 title={Qvæstio De Rarefactione & Condensatione},
 type={starodruk},
}