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Competitive advantage : creating and sustaining superior performance
Porter, Michael E.; Porter, Michael Eugene - 1985
Persistent link: https://www.econbiz.de/10000076482
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Competitive strategy : techniques for analyzing industries and competitors
Porter, Michael E. - 1980
Persistent link: https://www.econbiz.de/10000041319
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Cases in competitive strategy
Porter, Michael E. - 1983
Persistent link: https://www.econbiz.de/10000555082
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Competitive strategy : techniques for analyzing industries and competitors ; with a new introduction
Porter, Michael E. - 1998
Persistent link: https://www.econbiz.de/10000649316