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Diffusion of an innovation in a spatial economy
Hsueh, Kuang-tao, (1985)
A sketch of a prohabilistic modification of the product-cycle hypothesis to explain the problems of old industrial areas
Tichy, Gunther, (1984)
The market orientation of R & D : a recommendation for minimizing new product risk
Hanan, Mack, (1965)
The response of US business to consumerism
Barksdale, H. C., (1976)