@misc{Guđmundsson_Einar_H._Copernicanism,
 author={Guđmundsson, Einar H.},
 copyright={Guđmundsson, Einar H.},
 copyright={Kolbeins, Eyjólfur},
 copyright={Vilhjálmsson, Thorsteinn},
 address={Warszawa},
 howpublished={online},
 publisher={PWN},
 language={eng},
 type={artykuł},
 title={Copernicanism in Iceland},
 keywords={Kopernik, Mikołaj},
}