Brzeziński, Stanisław, and Piotr Stefańczyk. “USE OF SMARTPHONE’S POSSIBILITIES IN CONSTRUCTION OF LOGISTICS SYSTEM OF VENDING MACHINES”. Advanced Logistic Systems - Theory and Practice 7, no. 1 (July 31, 2013): 21–30. Accessed December 22, 2024. https://als.uni-miskolc.hu/index.php/als/article/view/90.