6Bell D.R., Lattin J.N. , 1998, Shopping Behavior and Consumer Preference for Store Price Format, Why "Large Basket" Shoppers Prefer EDLP, Working Paper MSI.
7Castaldo S., Mauri C. , 1994, Supermarket Loyalty Promotions, An Empirical Study.
8Castaldo S., Mauri C. , 1996, Supermarket Loyalty Promotions, Egea, Milano.
9Deighton J., Peppers J., Rogers M. , 1994, Consumer Transactions Databases: Present Status and Prospects, in Blattberg, Glazer and Little.
10Dowling G.R., Uncles M. , 1995, Customer Loyalty Programs.. Should Every Finn Have One, Working Paper.
