https://digital.katalog.queersearch.org/s/katalog/item/42355, “Tagebuch: 1862-1864; 1876-1882: Deutsch von Hans Reisiger”, https://digital.katalog.queersearch.org/s/katalog/item/40422, QueerSearch, accessed 29. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/27138