https://digital.katalog.queersearch.org/s/katalog/item/44000, “Widerstand in Prenzlauer Berg und Weißensee”, https://digital.katalog.queersearch.org/s/katalog/item/49939, QueerSearch, accessed 30. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/27224