https://digital.katalog.queersearch.org/s/katalog/item/40860 and https://digital.katalog.queersearch.org/s/katalog/item/40861, “Fenny Skaller: Ein Leben der namenlosen Liebe”, https://digital.katalog.queersearch.org/s/katalog/item/42696, QueerSearch, accessed 28. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/17519