1. Ellickson, P.B.: The evolution of the supermarket industry: From A&P to Wal-Mart. Simon School Working Paper Series No. FR 11–17 (2011)
2. Desai, P., Potia, A., Salsberg, B.: Retail 4.0: The Future of Retail Grocery in a Digital World. McKinsey & Company.
http://www.mckinseyonmarketingandsales.com/retail-4-0-the-future-of-retail-grocery-in-a-digital-world
3. Accenture: Customers are shouting, are apparel retailers listening? Accenture Global Research (2016).
https://www.accenture.com/t20160526T041237__w__/us-en/_acnmedia/Accenture/Conversion-Assets/NonSecureClients/Documents/PDF/1/Accenture-Retail-Adaptive-Research-Results-Global-Generational-Data-2016-SCROLL.pdf
4. Barile, S., Polese, F.: Grocery retailing in the I4.0 era. SYMPHONYA Emerg. Issues Manage. 2018(2), 38–51 (2018)
5. Kallweit, K., Spreer, P., Toporowski, W.: Why do customers use self-service information technologies in retail? The mediating effect of perceived service quality. J. Retail. Consum. Serv. 21(3), 268–276 (2014)