6UNCTAD, World Investment Report 2005[R]. United Nations New York and Geneva, 2005:151-153.
7Gu, W. & Whewell, L. University Research and the Commercialization of Intellectual Property in Canada[R]. Industry Canada, Ottawa. 1999.
8Hounshell, D.A. The evolution of industrial research in the United States [A], in R.S. Rosenbloom and W.J. Spenser, ed. Engines of innovations: U.S. Industrial research at the end of an era[C], Boston: Harvard business school press, 1996.
9Rosenberg, N., Nelson, R.R. American universities and technical advance in industry [J]. Research policy, 1994(23): 323-348.
10Narin,F., Hamilton, K.S., Olivastro, D. The increasing link between U.S. technology and public science[J]. Research Policy,1997, 26(3): 317-330.
