@misc{Zylberberg_Abram_[?]_Two,
 author={Zylberberg, Abram [?]},
 howpublished={online},
 type={scan of a glass negative},
 title={Two men},
 keywords={Rynek 4, two men, Jewish History Tours, Faces of a non-existent city (photo collection), collection of glass negatives},
}