https://digital.katalog.queersearch.org/s/katalog/item/44487, “Hoover's War on Gays: Exposing the FBI's "Sex Deviates" Program”, https://digital.katalog.queersearch.org/s/katalog/item/50422, QueerSearch, accessed 14. März 2025, https://digital.katalog.queersearch.org/s/katalog/item/28154