https://digital.katalog.queersearch.org/s/katalog/item/38892, “How Sex Changed. A History of Transsexuality in the United States.”, https://digital.katalog.queersearch.org/s/katalog/item/47788, QueerSearch, accessed 18. Juni 2025, https://digital.katalog.queersearch.org/s/katalog/item/4995