https://digital.katalog.queersearch.org/s/katalog/item/41970, “Graffiti für Vespasian: Die Kunst im Pissoir”, https://digital.katalog.queersearch.org/s/katalog/item/40631, QueerSearch, accessed 16. Juni 2025, https://digital.katalog.queersearch.org/s/katalog/item/19569