F. Machlup & U. Mansfield, ‘Cultural Diversity in Studies of Information’, in: The Study of Information: Interdisciplinary Messages (New York, Wiley, 1983), p. 9.
M. Abramovitz & P. A. David, ‘Technological Change and the Rise of Intangible Investments: The US Economy's Growth-path in the Twentieth Century’, in: OECD Documents, Employment and Growth in the Knowledge-based Economy (Paris, OECD, 1996), p. 35.
Comments by N. Clark and G. M. Hodgson respectively, in: G. M. Hodgson, Economics and Evolution: Bringing life back into Economics (Cambridge, UK, Polity Press, 1993), p. 300, fn. 8.
Stuart Macdonald, ‘Controlling the Flow of High-technology Information from the United States to the Soviet Union: A Labour of Sisyphus?’, in: D. M. Lamberton (Ed.), The Economics of Communication and Information (Cheltenham, UK, Edward Elgar, 1996), pp. 307–341.