@misc{Klein_Franciscus_Ernestus_(16..-16..)_Exercitatio,
 author={Klein, Franciscus Ernestus (16..-16..)},
 howpublished={online},
 publisher={[Gdańsk]},
 publisher={Typis Viduæ Georgii Rhetii},
 language={lat},
 language={grc},
 type={stary druk},
 title={Exercitatio Physico-Mathematica De Eclipsibus Luminarium},
}