Kolářová, Vendula, and Eva Kolářová. “An Analysis of the Use of Marketing 4.0 Principles for Managing Customers Retionships in Microbreweries in the Capital City of Prague”. Potravinarstvo Slovak Journal of Food Sciences 14 (June 28, 2020): 336–342. Accessed February 25, 2024. https://potravinarstvo.com/journal1/index.php/potravinarstvo/article/view/1261.