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Self-Checkout: Improving Scan Accuracy Through Design:

Gamman, Lorraine ; Ekblom, Paul ; Doruff, Jeffrey
https://ualresearchonline.arts.ac.uk/id/eprint/17382/1/2020_Gamman,Doruff%20%26%20Ekblom_Self-Checkout_Improving_Scan_Accuracy_Short_Report.pdf.  , 2020