https://digital.katalog.queersearch.org/s/katalog/item/43411, “The Life and Times of a Respectable Rebel: Selina Cooper 1864-1946”, https://digital.katalog.queersearch.org/s/katalog/item/47693, QueerSearch, accessed 16. Juni 2025, https://digital.katalog.queersearch.org/s/katalog/item/26173