https://digital.katalog.queersearch.org/s/katalog/item/38494, “Von sieben Meeren: Fahrten und Abenteuer”, https://digital.katalog.queersearch.org/s/katalog/item/50906, QueerSearch, accessed 29. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/29741