@misc{Stumpf_Erich_(1877-_)_125,
 author={Stumpf, Erich (1877- )},
 howpublished={online},
 publisher={[s.n.]},
 language={ger},
 type={książka},
 title={125 Jahre Stumpf-Danzig : 5. April 1804-1929},
 keywords={Bursztyn, Polska, Gdańsk},
}