Plavcan, Peter, Javer Gusejnov, Martina Konecna, Maros Vince, Martin Peczar, Franz Steinau, Jens Weber, and Marc Weber. “Lifelong Learning in the Digital Age: An Analysis of Online Marketing Communication Strategies in Slovak Educational Institutions”. Amazonia Investiga 13, no. 84 (December 30, 2024): 28–42. Accessed August 2, 2026. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/2911.