@misc{Baczko_Ludwig_von_(1756-1823)_Geschichte,
 author={Baczko, Ludwig von (1756-1823)},
 howpublished={online},
 publisher={Gottlieb Leberecht Hartung},
 language={ger},
 language={lat},
 title={Geschichte Preussens. Bd. 2},
 type={starodruk},
}