https://digital.katalog.queersearch.org/s/katalog/item/63822, “Being a Jewish Lesbian in Berlin: Belonging and Solidarity during the Weimar Era and the Third Reich”, https://digital.katalog.queersearch.org/s/katalog/item/49485, QueerSearch, accessed 29. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/55496