@misc{Weierstrass_Karl_(1815–1897)_Abhandlungen_1886,
 author={Weierstrass, Karl (1815–1897)},
 copyright={Public Domain},
 address={Berlin},
 howpublished={online},
 year={1886},
 publisher={Verlag von Julius Springer},
 language={ger},
 type={Text},
 title={Abhandlungen aus der Functionenlehre},
 URL={http://www.rcin.org.pl/impan/Content/68750/PDF/WA35_14861_7219_Abhandlungen.pdf},
}