1. ABC News (1993), “Supermarket scanners”, ABC PrimeTime Live, April 8.
2. Bartholomew, D. (1992), “The price is wrong”, Information Week, September 14, pp. 26‐36.
3. Blacik, M. (1994), Price Verification Investigation, Department of Public Service ‐ Weights and Measures Division, St Paul, MN.
4. Chain Store Age Executive (1990), “MIS budgets continue to rise”, August, pp. 70‐2.
5. Chain Store Age Executive (1993), “In‐store systems: KIN II architecture brings high flexibility”, June, pp. 12A‐14A.