“K. P. Companje, R.H.M. Hendriks, K.F.E. Veraghtert En B.E.M. Widdershoven, Two Centuries of Solidarity. German, Belgian and Dutch Social Health Insurance 1770-2008”. 2010. TSEG - The Low Countries Journal of Social and Economic History 7 (4): 91-92. https://doi.org/10.18352/tseg.411.