@misc{Büsching_Anton_Friedrich_(1724-1793)_Charte,
 author={Büsching, Anton Friedrich (1724-1793) and Güssefeld, Franz Ludwig (1744-1808)},
 address={Nürnberg},
 howpublished={online},
 publisher={Homannische Erben},
 language={ger},
 language={fre},
 title={Charte von der Mittelmark [...]},
 keywords={18 w., kartografia, mapy, Marchia Środkowa, Marchia Brandenburska},
}