@misc{Knackfuss_Hermann_(1848-1915)_Menzel,
 author={Knackfuss, Hermann (1848-1915)},
 address={Bielefeld},
 address={Leipzig},
 howpublished={online},
 publisher={Velhagen & Klasing},
 language={ger},
 type={książka},
 title={Menzel},
 keywords={Menzel, Adolph von (1815-1905), Artyści niemieccy},
}