“FREEDOM OF SERVICES BY CORRESPONDENCE AS THE ‘FIFTH FREEDOM’ FOR THE DIGITAL SINGLE MARKET – LIMITATIONS BY THE TFEU”. EU and comparative law issues and challenges series (ECLIC) 3 (June 12, 2019): 707–723. Accessed August 20, 2025. https://ojs.srce.hr/index.php/eclic/article/view/9028.