Dienes, Balázs Bence, Dejsi Qorri, and János Felföldi. “COVID-19 Impact in Sourcing in Global Value Chains”. Journal of Agricultural Informatics 15, no. 1 (August 28, 2024). Accessed September 12, 2024. https://journal.magisz.org/index.php/jai/article/view/712.