@misc{_Przemyśl,,
 howpublished={online},
 publisher={Wydawnictwo „Polonia”},
 language={pol},
 language={ger},
 type={iconic document},
 title={Przemyśl, Fort Nr. 13 : wieże pancerne = Panzerturm},
 keywords={Przemyśl Fortress, Fort GW XIII "San Rideau", fortifications, destructions, postcards, World War (1914-1918)},
}