@misc{_[Gneisenau,,
 howpublished={online},
 publisher={[K. F. Post.]},
 language={ger},
 title={[Gneisenau, August Neithardt von]},
 type={rękopis},
 type={rycina},
 keywords={Gneisenau August Neithardt von, 19 w., litografia, portret},
}