@{, author = {https://digital.katalog.queersearch.org/s/katalog/item/39056, and https://digital.katalog.queersearch.org/s/katalog/item/45101,}, year = {1929}, title = {Sexualgeschichte der Menschheit: Mit zahlreichen Abbildungen}, publisher = {https://digital.katalog.queersearch.org/s/katalog/item/49384} }