https://www.mappingthelives.org/bio/e15b978d-4f93-49db-b19b-5c43d209a4b5
https://www.alemannia-judaica.de/burghaslach_synagoge.htm
https://www-p.archivportal-d.de/item/WOUEKSLAIRSR2NC3G3TQRFGXF5VPSVXU?rows=20&offset=0&viewType=list&hitNumber=5&sort=random_4577577705651022032+desc&lang=de&facetValues[]=context%3DQEOBUUGRUQPH67FY7CJ6P6JM6SSKF5LP&query=zentmann&_=1704653682472
