https://digital.katalog.queersearch.org/s/katalog/item/38658, “Magnus Hirschfeld: Frumkvöðull í mannréttindabaráttu hinsegin fólks”, https://digital.katalog.queersearch.org/s/katalog/item/50980, QueerSearch, accessed 15. März 2025, https://digital.katalog.queersearch.org/s/katalog/item/29979