@misc{Gerland_Ernst_(1838–1910)_Der_1883,
 author={Gerland, Ernst (1838–1910)},
 copyright={Public Domain},
 address={Berlin},
 howpublished={online},
 year={1883},
 publisher={Carl Habel},
 publisher={(Unger)},
 language={ger},
 language={ger},
 title={Der leere Raum, die Constitution der Körper und der Aether},
 type={Text},
 URL={http://www.rcin.org.pl/Content/10934/PDF/WA35_27009_5535_Der-Leere.pdf},
}