https://digital.katalog.queersearch.org/s/katalog/item/43038, “The Trials of Masculinity: Policing Sexual Boundaries 1870-1930”, https://digital.katalog.queersearch.org/s/katalog/item/47802, QueerSearch, accessed 15. März 2025, https://digital.katalog.queersearch.org/s/katalog/item/25393