https://digital.katalog.queersearch.org/s/katalog/item/63853, “Die "Rosa-Winkel-Häftlinge" im Männerlager des KZ Ravensbrück”, https://digital.katalog.queersearch.org/s/katalog/item/49198, QueerSearch, accessed 29. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/55568