https://digital.katalog.queersearch.org/s/katalog/item/43666, “Married Love. A New Contribution to the Solution of Sex Difficulties: With a Preface by Dr. Jessie Murray and a letter from Professor E.H. Starling, F.R.S.”, https://digital.katalog.queersearch.org/s/katalog/item/49905, QueerSearch, accessed 1. Mai 2025, https://digital.katalog.queersearch.org/s/katalog/item/26647