1. Denis Lefèvre, Marc Sangnier: L’aventure du catholicisme social (Paris: Mame, 2008), p. 230.
2. On Catholicism in the immediate post-war period, see Nicholas Atkin, ‘Catholics and the Long Liberation: The Progressive Moment’, in Andrew Knapp (ed.), The Uncertain Foundation: France at the Liberation, 1944–1947 (Basingstoke: Palgrave Macmillan, 2007), pp. 121–38.
3. Lefèvre, Marc Sangnier, p. 230: Isser Woloch, ‘Left, Right and Centre: The MRP and the Post-War Moment’, French History, 21 (2007), pp. 85–106 at p. 88.
4. Wolfram Kaiser, Christian Democracy and the Origins of European Union (Cambridge: Cambridge University Press, 2007), pp. 191–252.
5. See also, Marie-Thérèse Bitsch, Robert Schuman, apôtre de l’Europe 1953–1963 (Brussels: P.I.E. Peter Lang, 2010)