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Purchasing's role in new product development
Burt, David N., (1985)
Innovatie op het gebied van produktie- en voorraadbeleid
Herroelen, Willy, (1985)
New product inventory levels : introduction and revision
Riggs, Walter E., (1978)
Use of the product life cycle concept in development of purchasing strategies
Kiser, G. E., (1980)
In defense of public utility advertising
Davis, Grant M., (1973)
Marketing research
Dodge, Harry Robert, (1982)