https://digital.katalog.queersearch.org/s/katalog/item/66582 and https://digital.katalog.queersearch.org/s/katalog/item/66583, “Stoffwechseluntersuchungen bei kindlicher Leberzirrhose”, QueerSearch, accessed 28. April 2025, https://digital.katalog.queersearch.org/s/katalog/item/61336