@misc{Dorsz_Jan_(1623-1661)_Disputatio,
 author={Dorsz, Jan (1623-1661)},
 howpublished={online},
 publisher={Gedani},
 publisher={Typis Rhetianis},
 language={lat},
 language={gre},
 type={stary druk},
 title={Disputatio Physico-Mathematica De Cometis},
}