List of survivers https://collections.arolsen-archives.org/de/document/78813716
https://yvng.yadvashem.org/nameDetails.html?language=en&itemId=6143834&ind=1
https://www.ushmm.org/online/hsv/person_advance_search.php?NameSearch__SourceSrchGrp=&NameSearch__ParentSourceId=&NameSearch__sort=score&NameSearch__MaxPageDocs=25&NameSearch__lname=hajda&NameSearch__lname_accuracy=&NameSearch__fname=ruchla&NameSearch__fname_accuracy=&NameSearch__lname_maiden=&NameSearch__lname_maiden_accuracy=&NameSearch__Query=&NameSearch__SourceId=&source_list=&NameSearch__year_birth=&NameSearch__year_birth_accuracy=&NameSearch__year_death=&NameSearch__year_death_accuracy=&NameSearch__year=&NameSearch__year_accuracy=&NameSearch__place=&NameSearch__place_accuracy=&NameSearch__place_IsGeoExpand_cb_1=expand&NameSearch__place_IsGeoExpand_cb_0=&NameSearch__place_birth=&NameSearch__place_birth_accuracy=&NameSearch__place_birth_IsGeoExpand_cb_1=expand&NameSearch__place_birth_IsGeoExpand_cb_0=&NameSearch__place_prewar=&NameSearch__place_prewar_accuracy=&NameSearch__place_prewar_IsGeoExpand_cb_1=expand&NameSearch__place_prewar_IsGeoExpand_cb_0=&NameSearch__place_wartime=&NameSearch__place_wartime_accuracy=&NameSearch__place_wartime_IsGeoExpand_cb_1=expand&NameSearch__place_wartime_IsGeoExpand_cb_0=&NameSearch__place_death=&NameSearch__place_death_accuracy=&NameSearch__place_death_IsGeoExpand_cb_1=expand&NameSearch__place_death_IsGeoExpand_cb_0=&NameSearch__meta_333=&NameSearch__meta_259=