Bonczkowski, Janusz Krystian. “Friedrich Julius Kleinmichel – Genremaler Und Illustrator (1846–1892)”. Folia Toruniensia 19 (December 6, 2019): 209–219. Accessed March 5, 2026. https://apcz.umk.pl/FT/article/view/FT.2019.012.