STANCA R, SOBOLU R. MEASURING PHYSICAL AND VIRTUAL PRESENCE IN THE DIGITAL ECONOMY ERA. Studia UBB Digitalia [Internet]. 2018 Jun. 30 [cited 2025 Dec. 18];63(1):69-80. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbdigitalia/article/view/9633