Gedenkbuch - Gedenkbucheintrag Ruth Weil
https://yvng.yadvashem.org/index.html?language=en&s_id=&s_lastName=weil&s_firstName=ruth&s_place=&s_dateOfBirth=&cluster=true
http://www.tenhumbergreinhard.de/1933-1945-lager-1/1933-1945-lager-k/kersdorf.html