https://digital.katalog.queersearch.org/s/katalog/item/40102 and https://digital.katalog.queersearch.org/s/katalog/item/40103, “Bodytrainer für Männer: Bauch”, https://digital.katalog.queersearch.org/s/katalog/item/47507, QueerSearch, accessed 28. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/16165