1. Acs, Z. and Audretsch, D. (1988) Innovation in large and small firms: an empirical analysis American Economic Review, 78, pp. 678 - 690.
2. Beckett, J.(1990) The Agricultural Revolution. Oxford : Basil Blackwell.
3. Cohen, W. and Levinthal, D. (1989) Innovation and the learning: the two faces of R&D Economic Journal, 99, pp. 569 - 596.
4. Comin, D. and Hobijn, B. (2004) Cross-country technology adoption: making the theories face the facts Journal of Monetary Economics, 51, pp. 39 - 83.
5. Deane, P.(1969) The Industrial Revolution in England 1700 – 1914. London : Collins Clear-Type Press.