@misc{Hjelmslev_Johannes_(1873–1950)_Nye_1912,
 author={Hjelmslev, Johannes (1873–1950)},
 editor={Nielsen, Niels. Ed.},
 copyright={Public Domain},
 address={Kjøobenhavn},
 address={Kristiania},
 howpublished={online},
 year={1912},
 publisher={Gyldendalske Boghandel Nordisk Forlag},
 language={dan},
 title={Nye Undersøgelser over Geometriens Grundlag},
 type={Text},
 URL={http://www.rcin.org.pl/Content/79945/PDF/WA35_104608_4567_Beretning-6.pdf},
}