https://digital.katalog.queersearch.org/s/katalog/item/64152, “§ 175 StGB: "weggefallen" - nach 123 Jahren / Paragraph 175 of the Penal Code: "Abolished" after 123 Years”, https://digital.katalog.queersearch.org/s/katalog/item/48435, QueerSearch, accessed 14. März 2025, https://digital.katalog.queersearch.org/s/katalog/item/56601