https://digital.katalog.queersearch.org/s/katalog/item/46524, https://digital.katalog.queersearch.org/s/katalog/item/42487, and https://digital.katalog.queersearch.org/s/katalog/item/45700, “Talk SchwuZ Schwule Kultur was soll's? mit Erika Radtke Chou Chou de Briquette Melitta Sundström Melitta Poppe Claus Plänkers Wieland Speck”, 1991, QueerSearch, accessed 29. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/34071