Hartog, Johan den. “Sophie De Schaepdrijver, ‘We Who Are so cosmopolitan’. The War Diary of Constance Graeffe, 1914-1915”. BMGN - Low Countries Historical Review 125, no. 4 (January 1, 2010). Accessed December 22, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-108236.