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A diffusion model for new product introduction in existing markets
Naert, Philippe Antoine, (1985)
Decision support for marketing new products : paper
Milling, Peter M., (1986)
Product development strategies for high-tech industries
Schroeder, Dean M., (1988)
Consultative selling : the Hanan formula for high-margin sales at high levels
Hanan, Mack, (1999)
Consultative selling
Hanan, Mack, (1995)
Sales shock! : The end of selling products, the rise of comanaging customers
Hanan, Mack, (1996)