@misc{Kulczycki_Ludwik_(1866-1941)_Geschichte,
 author={Kulczycki, Ludwik (1866-1941)},
 address={Gotha},
 howpublished={online},
 publisher={Friedrich Andreas Perthes A.-G.},
 language={ger},
 language={pol},
 type={książka},
 title={Geschichte der russischen Revolution. Bd. 1-3},
}