@misc{Gwinner_Arthur_Philipp_[List,
 author={Gwinner, Arthur Philipp},
 address={Berlin},
 howpublished={online},
 language={ger},
 type={tekst},
 title={[List do Otto Lummera - Lum. 92]},
 keywords={19 w., 20 w., korespondencja, Lummer, Otto (1860-1925), http://viaf.org/viaf/54931576},
}