Kerner, Riina, and Meelis Kitsing. “Small Is Beautiful and Important: Economies and Firms Trading in Digital Services ”. Journal of Business Economics and Management 24, no. 1 (February 27, 2023): 93–111. Accessed November 9, 2024. https://mma.vgtu.lt/index.php/JBEM/article/view/18585.