https://digital.katalog.queersearch.org/s/katalog/item/43357, https://digital.katalog.queersearch.org/s/katalog/item/43358, and https://digital.katalog.queersearch.org/s/katalog/item/43057, “Das sexuelle Verhalten der Frau”, https://digital.katalog.queersearch.org/s/katalog/item/49685, QueerSearch, accessed 1. Mai 2025, https://digital.katalog.queersearch.org/s/katalog/item/26089