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Measuring the effects of retail marketing instruments using a switching model
Bode, B.; Koerts, J.; Thurik, A. R. - 1987
Persistent link: https://www.econbiz.de/10000000280
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Modelling markets : bibliography & review
Leeflang, Peter (contributor); Koerts, J. (contributor);  … - 1976
Persistent link: https://www.econbiz.de/10000664604
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Modelling and marketing : two important concepts and the connection between them
Leeflang, P. S. H.; Koerts, J. - In: European journal of marketing : EJM 7 (1973/74) 3, pp. 203-217
Persistent link: https://www.econbiz.de/10002236111
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Plaatsbeppaling van marketing
Leeflang, P. S. H.; Koerts, J. - In: Economisch statistische berichten : ESB 55 (1970)
Persistent link: https://www.econbiz.de/10002236118