@misc{Bayer_Julian_(1806–1872)_Pierwsze_[1867],
 author={Bayer, Julian (1806–1872)},
 copyright={Public Domain},
 address={[Warszawa]},
 howpublished={online},
 year={[1867]},
 publisher={s.n.},
 language={pol},
 type={Text},
 title={Pierwsze początki geometryi wyższéj},
 URL={http://www.rcin.org.pl/Content/6646/PDF/WA35_5715_6493_Pierwsze-poczatki.pdf},
}