https://digital.katalog.queersearch.org/s/katalog/item/43393, “"Niedliche Japaner" oder Gelbe Gefahr? Westliche Kriegspostkarten 1900-1945”, https://digital.katalog.queersearch.org/s/katalog/item/49334, QueerSearch, accessed 29. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/26139