https://digital.katalog.queersearch.org/s/katalog/item/39179 and https://digital.katalog.queersearch.org/s/katalog/item/42158, “Gay by the Bay: A History of Queer Culture in the San Francisco Bay Area”, https://digital.katalog.queersearch.org/s/katalog/item/49113, QueerSearch, accessed 1. Mai 2025, https://digital.katalog.queersearch.org/s/katalog/item/19942