1. Acs, Z.J., Audretsch, D.B., 1991. Innovation as a Means of Entry: An Overview, in: P.A. Geroski and J. Schwalbach, eds., Entry and Market Contestability: An International Comparison. Blackwell Press, Cambridge, pp. 222–243.
2. Aerospace Industries Association of America, Aerospace Facts and Figures.
3. The evolution of markets and entry, exit and survival of firms;Agarwal;Review of Economics and Statistics,1996
4. New firm survival and the technological regime;Audretsch;Review of Economics and Statistics,1991
5. Bureau of the Census, Census of Manufactures, Government Printing Office; Bureau of the Census, Annual Survey of Manufactures, Government Printing Office.