@misc{Kopernik_Mikołaj_(1473-1543)_Nicholas,
 author={Kopernik, Mikołaj (1473-1543)},
 copyright={Polska Akademia Nauk},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 publisher={Polish Scientific Publishers},
 language={eng},
 type={książka},
 title={Nicholas Copernicus complete works},
 keywords={Kopernik, Mikołaj (1473-1543), teoria heliocentryczna},
}