https://digital.katalog.queersearch.org/s/katalog/item/41711, https://digital.katalog.queersearch.org/s/katalog/item/41712, and https://digital.katalog.queersearch.org/s/katalog/item/40496, “Lesbenpfingsttreffen 1991 Mönchengladbach: Lesbisch - na und!?”, QueerSearch, accessed 1. Mai 2025, https://digital.katalog.queersearch.org/s/katalog/item/18853