@misc{Hartmann_Johannes_Franz_(1865–1936)_[List,
 author={Hartmann, Johannes Franz (1865–1936)},
 address={Göttingen},
 howpublished={online},
 language={ger},
 type={tekst},
 title={[List do Otto Lummera - Lum. 97]},
 keywords={19 w., 20 w., korespondencja, Lummer, Otto (1860-1925), http://viaf.org/viaf/54931576},
}