1. Patrick O’Brien/Caglar Keyder: Economic Growth in Britain and France 1780–1914. Two Paths to the Twentieth Century. London 1978.
2. Walther G. Hoffmann et al.: Das Wachstum der deutschen Wirtschaft seit der Mitte des 19. Jh., Berlin, Heidelberg, New York, 1965.
3. Eric J. Hobsbawm: Industrie und Empire, Vol. I, Frankfurt 1969, p. 9
4. Louise Tilly: Materials of the Quantitative History of France since 1789, in: Val R. Lorwin, Jacob M. Price (ed): The Dimensions of the Past. Materials, Problems and Opportunities for Quantitative Work in History, New Haven and London, 1972, pp. 138 f.
5. F. R. J. Jervis: The Handicaps of Britain’s Early Start, Manchester School, Vol. 15, 1947, pp. 112–122