https://digital.katalog.queersearch.org/s/katalog/item/45366, “Mountain of Truth: The Counterculture Begins. Ascona, 1900-1920”, https://digital.katalog.queersearch.org/s/katalog/item/51056, QueerSearch, accessed 14. März 2025, https://digital.katalog.queersearch.org/s/katalog/item/30227