Kalinić, Z., Ranković, V. and Kalinić, L. (2019) “Challenges in Cross-border E-commerce in the European Union”, Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, (5(977), pp. 159–170. doi:10.15678/ZNUEK.2018.0977.0510.