@misc{Ottmann_Victor_(1869-1944)_Belgien,
 author={Ottmann, Victor (1869-1944)},
 address={Bielefeld},
 address={Leipzig},
 howpublished={online},
 publisher={Verlag von Velhagen & Klasing},
 language={ger},
 type={książka},
 title={Belgien},
}