@misc{Knackfuss_Hermann_(1848-1915)_Van,
 author={Knackfuss, Hermann (1848-1915)},
 address={Bielefeld},
 address={Leipzig},
 howpublished={online},
 publisher={Velhagen & Klasing},
 language={ger},
 type={książka},
 title={Van Dyck},
 keywords={Van Dyck, Anton (1599-1641)},
}