@misc{Cohn_Gustav_(1840-1919)_Die,
 author={Cohn, Gustav (1840-1919)},
 address={Berlin},
 howpublished={online},
 publisher={C. G. Lüderitz'sche Verlagsbuchhandlung, A. Charisius},
 type={książka},
 title={Die Börse und die Spekulation},
}