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Product development practices in large US and UK firms
Johne, F. A., (1987)
Der goldene Weg zum neuen Produkt
Benkenstein, Martin, (1988)
Product innovation in a scientific age
Rosenbloom, Richard S., (1966)
Managing in times of radical change
Fendrock, John J., (1971)
International trade. A management guide
Heck, Harold Joseph, (1972)
Long-term profit planning
Weinwurm, Ernest H., (1971)