https://digital.katalog.queersearch.org/s/katalog/item/41983 and https://digital.katalog.queersearch.org/s/katalog/item/41984, “The Courage of His Convictions”, https://digital.katalog.queersearch.org/s/katalog/item/48468, QueerSearch, accessed 1. Mai 2025, https://digital.katalog.queersearch.org/s/katalog/item/19607