@misc{Zylberberg_Abram_[?]_Tombstone,
 author={Zylberberg, Abram [?]},
 howpublished={online},
 type={scan of a glass negative},
 title={Tombstone of Rivkah Rachela bat Elkanah},
 keywords={tombstone, Faces of a non-existent city (photo collection), Rynek 4, Jewish History Tours, collection of glass negatives, Rivkah Rachela bat Elkanah},
}